Feature 1Wireless doorbell with strong and stable wireless signal, ensures 150300m/164.0328.1ft control distance. 2The doorbell receiver has 5 levels of adjustable volume, ranging from 0dB to 110dB. 355 kinds of ringtones to choose from classic doorbell sounds to rhythmic tunes to suit any situation. 4IP55 waterproof rating to ensure perfect performance in outdoor environments. 5Unique and compact design, beautiful appearance, suitable for courtyard, villa or house using.Item Type: Wireless DoorbellMaterial: ABSColor: WhiteWeight: Approx. 130g/4.6ozWorking Temperature: -30-+70Voltage: AC 110-260V (Wide Voltage)Plug: EU PlugBattery: 1Pc Lithium Battery 23A 12v 60MAH (Receiver)(Built-In)Waterproof: IP55Control Distance: Approx. 150-300m/164.0-328.1ft .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Doorbell1 x Receiver1 x Screwdriver1 x Manual2 x StickerNote1. Please allow 0‑2 cm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.