Converter to connect existing doorbells - Easy installation - Plug-in connectors - Wireless range of up to 200 m - Converter to connect existing doorbells - Connect the converter to any Honeywell wireless portable doorbell - Low battery indicator - Mounting brackets included - Up to 2 years battery life Size: 80 x 64 x 15.9 mm Batteries: 1 x CR2032 (3 V) (included)