wireless digital doorbell

wireless digital doorbell 32 Tunes Remote Control Wireless Doorbell Features: 1.Operating rang up to 100 meters in the open area; 2.Easy to install and bring to no effect to your interior decoration; 3.No electrical wires install; 4.Low power consumption; *Characteristic: * The main circuit is imported from Japan, particular new sounds and new technology is your new sense of lift. * Waterproof-designed remote controller, the battery can be used for two years. *Function: * Gently press the small gap at the underside of remote controller with flat Screw-Driver, open the battery cover of remote controller, insert 1pcs 12V battery and then replace it. * Stich remote controller up the door with the double-side sticker. * Insert 3PCS AA size battery into the receiver. * Choose your favorite sound by pressing the selecting-sound button on the receiver. * Replace batteries if find the doorbell do not work well. **Detail: *Parameter:DC:1.5V*3 ; *Volume:> 70dB;Remote Control Power: <10mw *Frequency: 33.05MHz 434.79MHz * current:remote control 0 ; doorbell Average Standby Current: <0.2m