This CASIO radio-controlled clock features a simple white design and provides accurate time. - Brand: CASIO - Model: IQ-1005J-8JF - Type: Radio-controlled clock - Color: Silver - Size: Approximately 32cm Thank you for viewing. This item is unused. It has been stored at home. The instruction manual is missing, so I have copied it from the internet. There is no warranty or guarantee. Batteries and mounting hardware are included. Shipping will be via Takkyubin (Yamato Transport) size 80. Reference data: Case size (height x width x thickness) 324 x 324 x 52 mm Weight: 790 g Color: Silver Case material: Resin Time correction Radio-controlled clock, compatible with all of Japan Power supply/Battery life Battery: Alkaline AA battery x 1 Battery life: Approximately 1 year Clock functions Radio reception indicator Radio reception lamp (indicates radio reception results with a lamp) Accuracy *If radio reception is not performed, it operates with standard quartz accuracy (average monthly difference ±30 seconds). Time correction details *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. Radio reception function: Automatic reception/manual reception, with automatic selection function (receiving radio waves = long wave standard radio waves JJY, frequency = 40kHz/60kHz)