Yealink BH78 Wireless Bluetooth Over-Ear Headset with BT51 USB-C Dongle

The modern professional does not work in one place. The day begins at a home desk, moves to an office, detours through a coffee shop, and ends on a commute. Every environment brings different noise, different demands, and a different version of the same question: can your headset keep up?

The Yealink BH78 was built to answer yes - every single time.

This is Yealink's most advanced wireless headset to date. A flagship-level product that combines Adaptive Hybrid Active Noise Cancellation, a six-microphone AI uplink noise cancellation system, Yealink CloudSoft Comfort Technology, and a smart foldable design into a headset that performs at the highest professional level while transitioning effortlessly between desk, commute, and everywhere in between.

At the listener side, Adaptive Hybrid ANC does what most ANC systems cannot - it does not apply a fixed noise-blocking profile and call it done. It continuously monitors your acoustic environment in real time, reading the noise landscape around you and adjusting its cancellation depth and frequency targeting accordingly. Up to 35dB of adaptive noise reduction across low, mid, and high frequencies means engine hum, café chatter, open-office buzz, and road noise are all addressed - not just the frequencies a fixed ANC profile was tuned for. The ANC adapts as your environment changes, keeping you in a consistent, focused acoustic space without any manual adjustment.

At the microphone side, a six-microphone array - powered by an AI algorithm trained across dozens of simulated and real-world field scenarios - separates your voice from background noise with up to 98% accuracy. This is not simple noise gating or basic filtering. The AI system has learned to distinguish human speech from environmental sounds at a fundamental level, delivering voice transmission that sounds natural, present, and completely professional regardless of what is happening around you. Built-in wind noise suppression extends this performance to outdoor environments and commuting scenarios where most headsets struggle.

The microphone boom arm retracts completely into the ear cup housing when not in use - preserving the BH78's clean, premium aesthetic for music, personal use, and any moment when you are not on a call. The boom arm has been durability-tested to over 20,000 rotation cycles, built to last as long as the headset itself.

Yealink CloudSoft Comfort Technology is the engineering framework behind the BH78's wearing experience. A 10-step adjustable headband with ultra-soft foam provides balanced, precise pressure distribution for every head size. Plush earcup padding conforms to the shape of your ear - crucially, it is designed to maintain comfort even with glasses, a feature that most headset manufacturers overlook entirely. Validated through tens of thousands of fit tests: the BH78 fits over 95% of users with five-star wearing comfort, all day.

The battery is in a class of its own. Up to 38 hours of talk time with ANC off - an entire working week of calls on one charge. 27 hours with both ANC and busylights on simultaneously - the real-world scenario for most professionals. 120 hours of music playback with ANC off. And when the battery does run low, 5 minutes of fast charging delivers 4 hours of talk time. You are never stranded.

The foldable design collapses to half its size in 2 seconds flat - slipping into any bag or jacket pocket for true on-the-go portability. The BT51 USB-C Bluetooth dongle with USB-A adapter is included, providing a dedicated, optimised PC connection alongside native Bluetooth for smartphones and tablets. A USB-C to 3.5mm audio cable is also included for wired connection to any AUX-equipped device.

Dual-sided busylights on both earcups illuminate red when you are on a call - visible from every direction in any shared workspace. Wearing detection pauses audio automatically when you remove the headset and resumes it when you put it back on.

Compatible with Zoom, Google Meet, Cisco Webex, RingCentral, and over 100 platforms and operating systems.

Adaptive. Intelligent. Unstoppable. This is the BH78.

KEY FEATURES

Adaptive Hybrid ANC - Noise Cancellation That Never Stands StillThe BH78's Adaptive Hybrid Active Noise Cancellation is a fundamentally different approach to listener-side noise blocking. Rather than applying a fixed cancellation profile calibrated for one type of noise, Adaptive Hybrid ANC continuously monitors your acoustic environment in real time and adjusts its cancellation depth, frequency targeting, and processing intensity to match what you are actually hearing. Up to 35dB of noise reduction across low, mid, and high frequencies addresses everything from low-frequency engine rumble and HVAC hum, to mid-range café conversation and keyboard noise, to high-frequency office buzz - all simultaneously and continuously. As your environment changes throughout the day, the ANC changes with it. Wind noise suppression - configurable via the Yealink YUC platform - further extends ANC performance for outdoor and commuting use.

Six-Microphone AI Uplink Noise Cancellation - 98% Background Noise EliminatedThe BH78's microphone system is built around six microphones - a four-microphone AI uplink array plus additional ANC microphones - powered by an AI algorithm trained across dozens of simulated and real-world field acoustic scenarios. The AI has learned to distinguish your voice from background sounds at a fundamental level, achieving up to 98% background noise elimination before your voice is transmitted. Wind noise suppression is built in, extending the microphone's effectiveness to outdoor and mobile use cases where most headsets produce unacceptable wind noise on calls.

Retractable Hidden Boom Arm - Durability Tested to 20,000+ RotationsThe microphone boom arm slides smoothly into the ear cup housing when not needed, completely disappearing from view and giving the BH78 a clean, modern over-ear aesthetic. When you need it, it extends smoothly into position in front of your mouth for optimal voice pickup. Yealink has durability-tested the boom arm mechanism to over 20,000 rotation cycles - ensuring it remains smooth and secure throughout years of daily use.

Yealink CloudSoft Comfort Technology - Engineered for Every HeadCloudSoft Comfort Technology is the design framework behind the BH78's wearing experience - developed through tens of thousands of fit tests. The 10-step adjustable headband provides precise, granular fit adjustment covering the full range of human head sizes. Ultra-soft foam headband padding provides balanced pressure distribution without hotspots. Plush earcup padding conforms to the natural shape of your ear over time. The padding geometry is specifically designed to remain comfortable for users who wear glasses - addressing the temple pressure that makes most headsets uncomfortable for eyeglass wearers during extended sessions. The BH78 delivers five-star comfort for over 95% of users.

38 Hours Talk Time - The Full Working Week on One ChargeWith ANC off and busylights off, the BH78 delivers up to 38 hours of continuous talk time from its 850mAh lithium-ion battery - an entire working week with time to spare. With ANC and busylights on - the real-world configuration for most professionals - talk time is 27 hours, covering more than three full working days between charges. Music playback extends to 120 hours with ANC off. Standby time reaches 21 days.

5-Minute Fast Charge - 4 Hours of Talk TimeWhen the battery needs attention, 5 minutes of charging delivers 4 hours of talk time. A full charge from empty takes approximately 130 minutes via USB-C. Fast charge is designed for real-world scenarios - the brief window before a meeting where a conventional headset would leave you scrambling.

Dynamic EQ - Automatic Music and Call Mode OptimisationDynamic EQ automatically detects your current audio activity and adjusts the equalisation profile accordingly - voice-optimised for calls, full-range for music. The transition is instantaneous and fully automatic, so you always hear the optimal audio for whatever you are doing.

Dual 35mm Custom Speakers - Premium Audio for Calls and MusicTwo 35mm custom speaker drivers deliver audio across the full 20 Hz to 20 kHz frequency range with a sensitivity of 112.5 dB. The BH78 is tuned for genuinely enjoyable music reproduction as well as professional call audio - whether you are on a seven-hour call day or listening to music between meetings.

Smart Foldable Design - Half the Size in 2 SecondsThe BH78 folds to half its size in just 2 seconds, collapsing into a compact, portable form that slips into any laptop bag, backpack, or jacket pocket. A single confident motion locks into a stable folded position for transport - no two-handed fumbling required.

BT51 USB-C Bluetooth Dongle + USB-A Adapter IncludedThe included Yealink BT51 USB-C Bluetooth dongle provides a dedicated, optimised Bluetooth connection to your laptop or PC - delivering more stable, lower-latency audio than relying on a laptop's built-in Bluetooth. A USB-A adapter is included for use with standard USB-A ports.

USB-C to 3.5mm Audio Cable IncludedA USB-C to 3.5mm audio cable is included, allowing the BH78 to connect via a wired AUX connection to any device with a 3.5mm jack - working without any battery charge.

Bluetooth 5.3 - 50-Metre Range and Multipoint ConnectivityBluetooth 5.3 provides a stable, low-power wireless connection with a range of up to 50 metres (approximately 160 feet). Connect to two devices simultaneously and switch between them without disconnecting either. The BH78 stores up to eight paired devices for instant reconnection.

Dual-Sided Busylights - 360-Degree Call Status VisibilityBoth earcup housings feature integrated busylights that illuminate red when you are on a call. Visible from every direction in your workspace - colleagues approaching from any angle can immediately see that you are engaged and should not be interrupted.

Wearing Detection - Automatic Pause and ResumeWearing detection sensors identify when the headset is removed and pause audio automatically. When you put it back on, audio resumes from exactly where it stopped - seamless and intuitive.

Works with All Major Collaboration PlatformsThe BH78 is compatible with Zoom, Google Meet, Cisco Webex, RingCentral, Avaya, and over 100 platforms and operating systems - covering every collaboration tool your organisation uses from a single headset.

Yealink YUC and YMCS - Configuration and ManagementThe Yealink YUC app allows individual users to personalise ANC modes, enable wind noise suppression, adjust EQ, and receive firmware updates. IT administrators can use YMCS for remote fleet deployment, configuration, monitoring, and firmware management across organisations of any size.

WHO IS THIS FOR?

• Hybrid professionals who move between home, office, café, and commute and need a headset that performs consistently across all environments without configuration changes
• Call-intensive professionals who need 27-38 hours of talk time, serious adaptive ANC, and a professional microphone system in a single device
• Eyeglass wearers who have found most headsets uncomfortable after a few hours - CloudSoft Comfort Technology's glasses-aware padding design directly addresses this
• Frequent travellers and commuters who need a foldable, portable headset with wind noise suppression and ANC that handles transport environments
• Professionals who use their headset for both work and personal audio - the premium speaker system and 120-hour music battery make it as capable for personal listening as professional calls
• Open-plan office workers who need dual busylights for 360-degree call status visibility and adaptive ANC that handles a variable noise environment throughout the day
• IT-managed environments who need Yealink YUC and YMCS management capability at scale

TECHNICAL SPECIFICATIONS

• Brand: Yealink
• Model: BH78
• Type: Wireless Bluetooth over-ear headset
• Colour: Black
• Battery: 850mAh rechargeable lithium-ion
• Talk Time: Up to 38 hours (ANC off, busylight off) / Up to 27 hours (ANC on, busylight on)
• Music Time: Up to 120 hours (ANC off)
• Standby Time: Up to 21 days
• Charging Time: Approximately 130 minutes (full charge via USB-C)
• Fast Charge: 5 minutes = 4 hours talk time
• Speaker Size: 35mm (dual)
• Speaker Sensitivity: 112.5 dB 3 dB @ 1kHz
• Speaker Frequency Range: 20 Hz to 20,000 Hz
• Number of Microphones: 6 (4-mic AI uplink array + ANC microphones)
• Microphone Frequency Range: 100 Hz to 10,000 Hz
• AI Noise Reduction: Up to 98% background noise elimination
• Listener ANC: Adaptive Hybrid ANC - up to 35dB; continuously adapts to environment
• Wind Noise Suppression: Yes - configurable via Yealink YUC
• Dynamic EQ: Yes - auto-switches between call and music mode
• Boom Arm: Retractable hidden - 20,000+ rotation cycles durability tested
• Comfort System: Yealink CloudSoft Comfort Technology - 10-step adjustable headband; ultra-soft foam; glasses-compatible earcup padding; fits 95%+ of users
• Design: Smart foldable - halves in size in 2 seconds
• Busylight: Dual-sided - both earcups, illuminates red during calls
• Wearing Detection: Yes - auto pause on removal, auto resume on wear
• Bluetooth Version: 5.3
• Wireless Range: Up to 50 metres (approximately 160 feet)
• Simultaneous Connections: 2 (multipoint)
• Paired Devices: Up to 8
• Dongle: BT51 USB-C Bluetooth dongle + USB-A adapter (included)
• Wired Connection: USB-C to 3.5mm audio cable (included)
• Platform Compatibility: Zoom, Google Meet, Cisco Webex, RingCentral, Avaya, 100+ platforms
• OS Compatibility: Windows, macOS, iOS, Android, major operating systems
• App / Management: Yealink YUC (individual configuration); Yealink YMCS (enterprise fleet management)
• Charging Stand: Not included (available in separate with-stand variant)

IN THE BOX

• Yealink BH78 wireless Bluetooth headset
• BT51 USB-C Bluetooth dongle
• USB-A adapter for BT51 dongle
• USB-C to 3.5mm audio cable
• USB-C charging cable
• Quick start guide

Note: Charging stand not included. Available in separate with-stand variant.

FREQUENTLY ASKED QUESTIONS

Q: What is Adaptive Hybrid ANC and how does it differ from standard ANC?

A: Standard Active Noise Cancellation applies a fixed cancellation profile calibrated in a lab for a specific type or frequency range of noise and applies it uniformly regardless of what you are actually hearing. If the noise in your environment does not match the profile the ANC was tuned for, performance degrades. Adaptive Hybrid ANC on the BH78 takes a completely different approach. It continuously monitors your acoustic environment in real time, analysing the noise landscape and dynamically adjusting the cancellation depth, frequency targeting, and processing intensity to match what you are actually experiencing at that moment. As the noise in your environment changes - moving from a quiet corridor into a noisy office, boarding a train, sitting in a café - the ANC adapts with you automatically. Up to 35dB of reduction spans low, mid, and high frequencies simultaneously.

Q: How does the six-microphone AI system achieve 98% noise reduction?

A: The BH78's microphone system uses six microphones - a four-microphone AI uplink array in the boom arm plus additional ANC reference microphones - processed by an AI algorithm trained across dozens of different simulated and real-world acoustic environments. The AI has learned to recognise the acoustic signature of human speech and distinguish it from environmental noise at a fundamental level, achieving up to 98% background noise elimination before your voice is transmitted. Wind noise suppression extends this to outdoor environments where wind artefacts would otherwise degrade call quality.

Q: What is Yealink CloudSoft Comfort Technology?

A: CloudSoft Comfort Technology is Yealink's design and engineering framework for the BH78's wearing experience - developed through tens of thousands of individual fit tests. It encompasses a 10-step adjustable headband with ultra-soft foam for precise, balanced pressure distribution; plush earcup padding that conforms to the shape of your ear over time; and earcup geometry specifically designed to remain comfortable for users who wear glasses - the temple pieces sit in a zone of reduced pressure rather than being compressed against the ear as they are with most headsets. The result is five-star comfort for over 95% of users, including glasses wearers.

Q: What is the real-world talk time with ANC and busylights on?

A: With both ANC and busylights active simultaneously - the standard configuration for most office professionals - the BH78 delivers up to 27 hours of continuous talk time. This covers more than three full working days of eight-hour call sessions between charges. The 38-hour maximum is measured with both ANC and busylights off.

Q: How does the 5-minute fast charge work?

A: Five minutes connected to a USB-C power source delivers 4 hours of talk time. A full charge from empty takes approximately 130 minutes. Even a 10-minute charge during a break provides a meaningful extension to available talk time.

Q: What is the retractable boom arm and why has Yealink tested it to 20,000 cycles?

A: The boom arm retracts completely into the ear cup housing when not in use, concealing it entirely. When needed for a call, it extends smoothly into position. The 20,000-cycle durability test reflects the reality of professional daily use - at 10 extension and retraction cycles per day, 20,000 cycles represents over five years of daily use. Yealink has engineered the mechanism to remain smooth and secure throughout that period.

Q: What does the foldable design look like in practice?

A: The BH78 folds using a single motion that collapses the headband and rotates the earcups inward, reducing it to approximately half its open size in 2 seconds. The folded form locks stably for transport. When folded, it fits into the front pocket of most laptop bags or the outer pocket of a backpack - genuinely portable without requiring a dedicated headset case.

Q: What connectivity options does the BH78 support?

A: The BH78 supports three connection methods. First, via the included BT51 USB-C Bluetooth dongle (with USB-A adapter) for a dedicated, optimised PC connection. Second, via native Bluetooth 5.3 directly to any Bluetooth-enabled smartphone, tablet, or computer. Third, via the included USB-C to 3.5mm audio cable for a wired AUX connection - working without battery charge. Multipoint connectivity allows simultaneous connection to two devices with seamless switching between them.

Q: Does the BH78 include a charging stand?

A: No. This variant does not include a charging stand. A separate with-stand variant is available if you prefer the headset to charge automatically whenever it is set down on your desk.

Q: Can the BH78 be used with a desk phone?

A: The BH78 connects to desk phones that support Bluetooth headset pairing directly via native Bluetooth. For desk phones without Bluetooth, a Yealink EHS adapter or compatible wireless adapter can be used. Consult your desk phone's compatibility documentation or a Yealink reseller for your specific phone model.

Q: Is the Yealink YUC app required to use the BH78?

A: No. The BH78 functions fully out of the box without the YUC app. All core features - ANC, busylight, call controls, multipoint, wearing detection, dynamic EQ - operate without any software installation. The YUC app is optional, used to access ANC mode customisation, wind noise suppression toggle, EQ adjustments, and firmware updates. IT administrators can use YMCS for remote enterprise fleet management.

Q: What warranty does the Yealink BH78 come with?

A: The Yealink BH78 is covered by Yealink's standard manufacturer warranty. Please confirm current warranty terms with your retailer at time of purchase. A 12-month warranty is the standard term noted by international resellers.

WHY CHOOSE YEALINK?

Yealink is a global leader in unified communications and collaboration solutions, trusted by organisations across more than 140 countries. The BH78 sits at the top of Yealink's headset range - the result of applying everything Yealink has learned across its entire wireless headset lineup into a single product that addresses every significant limitation of previous generations.

Adaptive Hybrid ANC that evolves with your environment. A six-microphone AI system trained on real-world scenarios. CloudSoft Comfort for every head shape, including glasses wearers. A battery that lasts the full working week. A foldable design that fits in a pocket. Three connection methods for every device and scenario.

The BH78 is not a headset with a few impressive specifications and compromises elsewhere. It is a flagship product where every dimension has been thought through and executed at the highest level Yealink has achieved.

THE BOTTOM LINE

The Yealink BH78 is the most capable wireless headset in the Yealink range - and one of the most fully featured professional Bluetooth headsets available at any price point.

Adaptive Hybrid ANC with 35dB continuous real-time adjustment. Six-microphone AI system blocking 98% of background noise. CloudSoft Comfort fitting 95% of users with five-star all-day comfort, glasses included. 38 hours talk time. 120 hours music. 5-minute fast charge for 4 hours. Foldable to half size in 2 seconds. Dual busylights. Wearing detection. 50-metre Bluetooth 5.3. Three connection methods. Compatible with 100+ platforms.

For South African hybrid professionals who need a headset that performs at the highest level in every environment they work in - the BH78 is the answer.

Adaptive. Intelligent. Unstoppable. All day, everywhere.

What's in the box
1 x Yealink BH78 wireless Bluetooth headset
1 x BT51 USB-C Bluetooth dongle
1 x USB-A adapter for BT51 dongle
1 x USB-C to 3.5mm audio cable
1 x USB-C charging cable
1 x Quick start guide