CACAZI 1 Receiver 1 Transmitter EU Plug 300M Remote Home Waterproof LED Indicator Wireless Smart Digital AC Electronic Doorbell

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