CACAZI 60 Chime 110DB 300M Wireless Doorbell Waterproof Remote EU AU UK US Plug Smart Door Bell Battery 1 Button 1 2 3 Receiver

SPECIFICATIONSworking frequency: 433MHZWaterproof: IP44Use of premises: Home office villa hospital school factoryType: DoorbellsRing Tone: 60 ring tonesReceiving distance: 300M Remote (in open area)Power supply: 110V-220V-240VPower Source: Plug EU US UK AUPower Source: AC,BatteryOrigin: Mainland ChinaModel Number: A10BBFeatures 2: Learning codeFeatures 1: Distinguish front and rear doorsDoorbell Type: WirelessDetail: 1 or 2 Outdoor Transmitter 1 or 2 3 Indoor ReceiverCertification: CE,FCCBrand Name: SMATRULBattery mode: 12v 23A battery (not include battery)