Easy DIY Installation with 32 chimes to choose from. Backlit design lights up when someone pushes the doorbell. 165ft/50m range, Easy wireless installation plugs into mains power. Adjust the volume level to suit your needs. Uses a 23A battery (Included) Sleek & Modern cream gloss finish with silver metal trim suits any home or office decor. A Doorbell that's music to your ears A stylist door chime to suit any home decor. Simply plug into a power socket for easy use. Push the the doorbell and hear a melodic door chime with 32 chimes to choose from. Adjust the volume level to suit your needs. Backlit design lights up when someone pushes the doorbell. Easy wireless installation plugs into mains power with unto 165ft/50m range. Sleek & Modern cream gloss finish with silver metal trim suits any home or office decor. Uses a 23A Battery which is included in the pack.