Wireless Doorbell Receiver Transmitter Battery Powered Simple Outside Waterproof Intelligent Remote Control

A receiver and a transmitter to be a wireless doorbell, do not need to plug. 300 meters straight distance, anti-interference, 4 gears volume and 36 chord music. It can be taken as a doorbell to let the sweet ring instead of knocking, or a pager convenient for the elderly and pregnant women to call for help.

Features:
Rear horn, loud voice.
Adjustable ringtones and volume. 4 gears volume, 36 chord music.
Strong penetration, long distance transmission, 300 meters of the straight distance.
The transmitter has a waterproof design and meets IP44, extend service life.
Suitable for ordinary buildings, villa, housing, hotel apartment, office area, etc.

Specifications:
Material: Plastic
Color: White, Black (optional)
Receiver: 3 x AA batteries (not included)
Transmitter: 1 x 12V 23A battery (included)
Item Size: 
 Receiver: 95 * 65 * 25mm / 3.74 * 2.56 * 0.98in
 Transmitter: 75 * 51 * 20mm / 2.95 * 2.01 * 0.79in
Package Weight: 150g / 5.29ounces
Package Size: 120 * 90 * 70mm / 4.72 * 3.54 * 2.76in

Packing List:
1 * Receiver 
1 * Transmitter
1 * Doorbell Sticker
1 * Transmitter Double-sided Sticker
2 * Screws