Wireless Doorbell, 1000 ft Range, 2 Buttons + 1 Receiver, White 115 dB Volume, LED Flash, 52 Chimes, Waterproof, 3-Year Battery, No Wi-Fi or Fees, Door Bell for Home, Classroom, CW-12

EASY TO SET UP: 2 transmitters included; additional RB-1/CR-1 plug-in receivers can be added for extended coverage; simply mount the transmitter on the wall without any wiring; comes with 4 screws, 4 anchors, 1 key, and 2 double-sided adhesive pads 1, 000 FT/300 M ULTRA LONG WIRELESS RANGE: Will not interfere with other devices 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
TAILOR YOUR TRANSMITTER: 1.1 in (29 mm) stereo speaker delivers rich and crisp sound; 52 melodies and 5 adjustable volume levels with a maximum setting of 115 dB; assign a different ring tone to each transmitter so you can easily identify which doorbell has been pressed
HIGH PERFORMANCE: The transmitter features ultra-low power consumption; uses a lithium battery with a 3-year maximum lifespan; IP55 dustproof and waterproof rating; operates between -4 °F to 140 °F, enduring various harsh weather conditions
MEMORY FUNCTION: Retains your last melody and volume level after a power outage; no need to reconfigure your previous settings; convenient and easy-to-use design for an enhanced user experience