Poly 3.5mm to QD Cable 0.15m 40845-01

Poly 3.5mm to QD Cable 0.15m 40845-01 Poly (formerly Plantronics) 3.5mm QD Cable for H-Series headsets part # Poly 40845-01 or HP 85Q37AA is compatible with many devices using a standard 3.5 mm jack such as: Yealink Telephones About Direct Connect QD Cables Poly 48045-01 or 3.5mm QD Cable for H-Series headsets enable you to connect your H-Series headset directly to your desk phone – no amplifier or audio processor required. In order to be able to use a direct connect cable, your phone must be headset ready. TECH TIP: Yealink headset compatibility guide Understanding Direct Connect Cables vs. Amplifiers: When using any H-series headset, a Direct Connect Cable or amplifier is required to plug in between your headset and phone. Using a Direct Connect Cable will save you money versus an amplifier, but an amplifier will provide optimum sound quality and volume controls. Direct Connect Cable: Less expensive Easy to install into headset port Takes up virtually no desk space Limited to use with compatible phones only (Your future phone may not be compatible and require an amplifier)