Requires 1 x AA battery (not included) The clock was so cheap and keeps accurate time. Radio control was the only problem but we don't get a strong signal in our area. We are quite happy with it Radio Controlled clocks receive the time signal from the UK's atomic clock, automatically keeping accurate time. Acctim Elstow Analogue Wall Clock - Green | Sainsbury's Acctim Wall Clock Acctim Infinity Radio Controlled Lcd Desk Wall Alarm Clock - 71952 By Automatic Time Set Clock Clear easy to read dial , Dimensions: 255mm diameter. This wall clock by Acctim has a plastic lens within a silver plastic case. With MSF radio controlled movement, the time is set automatically and accurately White plastic case and lens Radio Controlled clocks also feature automatic setup, making it easier to be right on time.
