CACAZI A80 1 Receiver 1 Transmitter 300M Remote Waterproof US EU UK AU Plug Wireless Smart Digital AC Doorbell

Features and Specifications: 1.The button supports up to 100PCS, and the receiver supports up to 100pcs 2.If multiple buttons are paired with one or more receivers in the same system, each button can be set to a different ringtone. 3.Power-off memory function: Plug in the power again after power off, no need to re-select and lock the ringtone. 4.The transmitter without screw chuck design to achieve waterproof and dustproof. 5.The transmitter USE a 23A12V alkaline battery (not include battery). 6.Receiving distance:300 meters in open area. 7.Volume:4 levels 20-110db. 8.Melody:58 pcs. Specification: Brand: CACAZI Model: A80 Weight: 150g Receiver voltage: 110V-220V Dimensions: Transmitter:77x46x20mm,Receiver:95x65x33mm Color: Black/White Package Included: 1*Transmitter 1*Receiver 1*Double sided tape 1*Screw