1. Easy installation without wiring

2. Crystal vibration doorbell: within 100m of remote control distance, crystal vibration doorbell, close range, similar products may have crosstalk when used in close range. Please try to avoid using the same floor in the same building.

3. Digital doorbell: remote control distance up to 100m, use the same digital doorbell within a range, will not interfere with each other! Using wireless high-frequency transmission technology, innovative co-frequency different codes and dialing functions, the bit error rate is only one-twentieth, effectively avoiding the troubles caused by mutual interference and false sound between neighbors.

5.32 pieces music ringtones optional

6. Wireless doorbell strong DIY, one with one, one with two, two with two, more with more, it can be downstairs and upstairs. There are living rooms and inside rooms. If you close the door, you are not afraid that you can't hear the bell. It is not bad to have any chance to welcome you.

Transmitter: 23A 12V, battery available for one year (calculated by 20 times/1 day)

receiver: 2*1.5V (2 No. 5 batteries) need to be equipped by the buyer himself

usage: After the battery is installed, if you want to select a ringtone, press the tone selection button on the receiver and change the ringtone every time.

Install and use:

transmitter (Button): deliver a 12V23A No. Small battery. To install the battery, you need to use a screwdriver to pry open the rear cover. Comes with double-sided adhesive, which can be directly stuck on the security door. Screw holes are reserved for the back cover, which can be fixed on the wall.

Wholesale carton specifications:

model: 504

packing number: 60 sets/Box

communication specification: Cable

DC specification: 37X36X31CM