AVANTEK Wireless Door Bell, Mini CB-11 Waterproof Doorbell Chime Operating at 1000 Feet with 52 Melodies, 5 Volume Levels & LED Flash

SIMPLE SETUP: Just plug the mini receiver into a socket and fix the transmitter on a wall with the accessories provided; includes 2 screws, 2 anchors, a key and a piece of double-sided bonding tape
300 M/1000 FT ULTRA LONG WIRELESS RANGE: 1 plug-in receiver included; will not interfere with other equipment in your home or those of your neighbors; ensures you will never miss a visitor, even if you are a few rooms away or on another floor
52 CHIMES TO CHOOSE FROM: 1.1 in (29 mm) stereo speaker delivers rich and crisp sound; 5 adjustable volume levels with a maximum setting of 115 dB; press Next or Previous button to easily choose from 52 melodies
HIGH PERFORMANCE TRANSMITTER: Ultra-low power consumption; uses a lithium battery that boasts 3-year maximum lifespan; IP55 dustproof and waterproof rating; works between -4 °F to 140 °F; withstands various harsh weather conditions
MEMORY FUNCTION: Remembers your last melody and volume level after a power outage; no need to reset to your previous settings; convenient and easy-to-use design for an enhanced user experience