Description Material description: plastic waterproof grade: IP55 Working crane:150- 300 m (obstacle free) Working temperature: -30 C to+70 C Working frequency: 43392MHz 280KHz Receiver voltage: 110-260V/50-60Hz (wide voltage) Transmitter battery: 1 12V23A alkaline zinc manganese battery Quality certification: CE, ROHS, FCC, PSE, TELEC Package includes: 1 * Receiver, 1 * Transmitter;The transmitter is easy to trigger a dog ring tone. Just gently push or push it onto the touch pad to activate the wireless ring tone through the nose or paw. The distance between two rings is about 20 seconds. You need to press a dog or a big dog to do this. 2 Simple installation All dog rings used for cleaning and learning are wireless. Tape the transmitter to the door/floor/wall Double sided 3M adhesive, even on the map, Then place it anywhere you want, just connect the receiver to the power socket. The correct method is simple and easy to use. 3 tones and volume adjustable smart dog ringtones provide 55 ringtones and 5 volume levels, from 0 dB to 110 dB. You can set it to 0 dB (mute) when needed, and the wireless distance is150-300 m. The pet ringtone is equipped with a transmitter and receiver The receiver is easy to pair, the signal transmission is stable, and the anti-interference performance is good. IP55 waterproof built-in seal ring can protect the indoor components from water and dust, extend the service life, and work normally in rainy days Product features: 55 European and American ringing tones are optional: users can set any music as a doorbell ringing tone learning code according to their personal preferences: users can flexibly increase or decrease the receiver and transmitter according to their needs. The pairing method is simple and easy to operate memory function: the set ringing tone can be locked by memory after power-off, and still press the set ringing tone after power-off. The distance can reach 150-300 meters in an open Accessibility: remote control, stable signal Mutual non interference transmitter waterproof level P55: built-in waterproof rubber ring, can work normally even in rainy days, and not miss any visitors. Level 5 adjustable volume: 0-110 decibels, unique mute and non disturbance mode, Give users a better home experience touch button: when triggered once, the next time the interval is 205 (does not always trigger the bell Pet doorbell: will solve the problem that your door is no longer scratched by the dog's paw, as long as the dog's nose or paw touches the transmitter, the receiver can send a door bell Caller: the transmitter has a lanyard hole, which can add lanyards, incarnate as an old person pager, one button emergency call button