Battery Powered Outdoor Waterproof Wireless Doorbell

• Fully battery-operated with zero wiring or wall plug required, lightweight and portable. You can mount the push button anywhere indoors or outdoors for maximum convenience, paired with stable long-distance signal transmission.Battery Powered Wireless Design, Freely Positionable
• Weather-resistant outer casing blocks dust intrusion and splashing rain effectively. It withstands harsh outdoor environments and greatly extends the service life of the doorbell.All-Weather Dustproof & Waterproof Construction
• 5 adjustable volume gears up to 110 decibels. The loud crisp chime can be clearly heard in bedrooms, backyards and remote corners of the house, so you will never miss a visitor's call.5-Level Volume Control with Max 110dB Output
• Pick from 55 smooth, melodious ringtones to avoid repetitive boring sounds. When the button is pressed, the receiver outputs ringing sound together with LED flashing light for visual reminder.55 Custom Ringtones & LED Flash Alert
• Built-in memory chip automatically saves your last selected ringtone and volume level after power failure and restart. No manual reset is needed every time the device reboots.Practical Power-Off Memory Function

What's in the box
1 x Push Button (Transmitter)
1 x Receivers