This modern Wilko doorbell set includes one bell push and one mains operated door chime unit with a wireless range of up to 120 metres. Useful plug through access ensures you don't lose a socket when the unit is plugged in. 1x CR2032 button battery included. Set comprising 1x each bell push and mains operated door chime with plug through access. Wireless range up to 120m. Bell push requires 1x CR2032 button battery, included. Keep out of reach of children. Always read instructions.