- ONLY receiver, ONLY pair with Bistee doorbell button or door sensor (not included)!
- Made of ABS material with 4 volume level control from 25db-110db, 52 ringtones, LED indicator.
- Each receiver can be pair up to 50 transmitters customizing the bell or sensor in your business or home.
- No need battery, just plug into the socket, the output voltage is 110V.Working power is less than 10mw.
- Please make pairing with receiver(not included) BEFORE installation.FCC, RoHS certified and 1 Year Warranty.