General description The White wireless doorbell features a 400 m (1312 ft) ultra-wide wireless range, ensuring you won't miss any visitors even from a distance. It includes three plug-in receivers and offers 52 ringtones to choose from, providing rich and clear sound with five adjustable volume levels, reaching a maximum of 115 dB. The doorbell button is powered by a CR2032 lithium battery with a lifespan of up to three years and is designed to withstand various weather conditions with an IP55 waterproof rating. Technical specifications Wireless range: 400 m / 1312 ft Volume levels: 5 (max volume: 115 dB) Ringtones: 52 melodies Battery type: CR2032 lithium battery Battery lifespan: 3 years Operating temperature: -20 °C to 60 °C Waterproof rating: IP55 Installation Easy installation by attaching the bell button to the wall without cables Includes: two screws, two anchors, a wrench, and double-sided tape Simply plug the plug-in receiver into a power outlet Usage Press the next or