DiO Wireless Doorbell Kit 200m with 2 Receivers DescriptionEasily install or replace your doorbell without having to pull cables thanks to this long-range wireless doorbell. Wireless doorbell kit with 2 receivers Choice of 5 melodies and/or flashing light and 4 volume levels Can be operated by 4 different DiO 1.0 transmitters, each with its own melody Can be wall-mounted or placed on furniture (integrated design stand) Extra waterproof protection for the button Power supply button: 3 V DC (CR2032 lithium battery included) Power supply doorbell: 3 V DC (2 x AA 1.5 V, not included) DIO 1.0 and DIO 2.0 products are 100% interchangeable and 1-to-1 compatible with KlikAanKlikUit products General information Range: 200 m Frequency: 433.92 MHz Technical data