Youll always be on time with this easy-to-read radio controlled wall clock. Its automatically synchronised with the British Standard time signal, giving an incredible accuracy of one second in 60 million years. You dont even need to remember to change time when the clocks go forward or back: our radio controlled clock magically adjusts for summer and winter time.The wall clocks large, easy-read numbers are complemented by clear, bold hands and a second hand. Theres a choice of four smart case colours black, white, silver or red please indicate when ordering. Diameter 25cm. Uses one AA battery (supplied).When you order one radio controlled clock well send you a second one absolutely FREE. Doesnt that sound like a very timely bargain?