Features :
1.The button supports up to 20PCS, and the receiver supports up to 100pcs.
2.The transmitter without screw chuck design to achieve waterproof and dustproof.
3.Eye-catching backlight flashes when someone pushes the doorbell. Particularly suitable for the elderly, deaf.
4.Uses machine-learning to prevent interference from other wireless transmitters.
5.The transmitter USE a 23A12V alkaline battery (not include battery).
6.The receiver is available in a variety of plugs.
7.Receiving distance:300 meters in open area
8.The wireless signal will be affected by obstacles. The more obstacles, the more serious the signal loss.
9.Receiver has 4 levels(can be mute) 0-80db,38 music to choose from.
10.Size:Transmitter:69x51x20mm,Receiver:90x61x31mm
NOTE:The button cannot be placed on an iron door because it will interfere with the signal.How to pair signals:
Press and hold the volume button of the receiver and the transmitter for about 8 seconds to successfully pair.
Package includeds :
1 x Receiver
1 x Transmitter
1 x User Manual
Details pictures :
