BITIWEND Door Chime, Wireless Door Alarm Contact Sensor Doobell with 600ft Range 58 Chimes Adjustable Volume Mute Mode LED Indicators 1 Plug-in Receiver1 Door Sensors for Office/Home/Store

Wireless Door Sensor Chime BITIWEND Alarm Contact Sensor Door Bell for Office/Home/Store,Door Open Chime Window Alarm Operating Range 600ft With 52 Chimes 4 Volume Levels ———————– Changing the ringtone or matching a new device requires re-matching product information: 1. Plug the receiver into outlet. 2. Press the music button to select the ring tones you 3. After choosen the ringtone, then long press receiver volume button for about 5-7 seconds until hear receiver “ding” with blue led light flashes which mean receiver get into pairing mode and it will exit it automatically if it doesn’t get signal from transmitter in 5 seconds. 4. After the receiver enters the pairing mode, the transmitter should be triggered immediately ———————– Tip: Ensure the distance between door sensor and magnet part not exceed 1cm. If you still have questions of pairing, please contact with our customer service team to get video. Package of Door Chime: 1* Receiver1* Door sensor(transmitting part & magnet part) 1 * User Manual 1 * Double-side tape