Description:
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 etc.
4.Uses machine-learning to prevent interference from other wireless transmitters.
5.The transmitter USE a 23A12V alkaline battery (not include battery).
6.Receiving distance:300 meters in open area
7.Volume:4 levels 20-80db.
8.Melody:38 pcs.
Specification:Brand: CACAZI
Model: A68
Weight: 300g
Dimensions: Transmitter:76x43x22mm,Receiver:90x55x25mm
Color: Black/White
Package Included:1 *Transmitter
1* Receivers
2* Double sided tapes
2*Screw
