Thank you for viewing. ★★ Regarding this product, it may depend on the region or location, but it did not receive radio waves, so it is being sold as a defective item. It can be used if you set the time manually. If radio waves are not received immediately, the instruction manual states, "Please wait 1-2 weeks to see if it receives," but we have not confirmed reception after a long period of time. If you understand that it's okay if it doesn't receive radio waves, please purchase it. Please note that we cannot accept returns due to the failure to receive radio waves after purchase. ◾️ Large wall clock for offices A radio-controlled clock that automatically corrects the time by receiving the "Japan Standard Time" standard radio wave. It is a large wall clock with a diameter of 360mm, with a simple design, perfect for offices and classrooms. Case material: Resin Windshield: Glass Radio wave reception function: Automatic reception / manual reception, with automatic channel selection function (received radio wave = long wave standard radio wave JJY, frequency = 40kHz / 60kHz) Radio wave reception lamp (indicates the radio wave reception result with the lighting of the lamp) Radio wave reception indicator (displays the radio wave reception status) Batteries used: Alkaline dry cell size 2 x 2 * If radio waves are not received, it operates with normal quartz accuracy (average monthly difference ±30 seconds). * This product is for Japanese radio wave specifications. When used overseas, it may rarely receive Japanese standard radio waves and display Japanese time. It is not compatible with use overseas.