CACAZI Wireless Doorbell Waterproof Door Bell Kit, 36 Chimes with 1000 Feet Operating, 4 Level Volume, 2 Receiver and 2 Push Button with Sound and LED Flash -Black-

Model Number:A20 Working Orange:1000Feet(300m) in open space Color:2 colors (black/silver) Melody:36 chimes Volume: 4 levels from 20-85dB Battery Type: 12V23A alkaline battery Power Source:110V(US Plug) Transmitter Size:77x46x20mm Receiver Size:90x56x20mm Waterproof grade: IP44 Applicable temperature: -30°C to 70°C Featuring multiple chime options, handy volume control and long working distance, the wireless doorbell kit is a must-have accessory for home, office, store and etc. Easy Installation No wiring required. Simply plug the receiver into an electrical outlet and install the push button with included double-sided tape and screws. NOTE: The push button requires a battery which is already included, it is a kind of 23A 12V Alkaline battery and not rechargeable. The Receiver plugs into a wall circuit and requires no battery. The button cannot be placed on an iron door because it will interfere with the signal. Package Contents: 2 wireless doorbell button and 2 plug in doorbell receivers. 2 double-sided adhesive tape and 2 screw. 2 alkaline battery 12V23A