MUJI Analog Alarm Clock Model 82114300 Number MJ-AC1

External dimensions: Size: Width 76 x Depth 36 x Height 76 mm Weight: 100 g (including batteries) Clock functions: Electronic alarm (3 levels of sound), snooze function, light Clock back specifications: Time setting knob Battery size and number required: 1 AA manganese dry battery R6P (1.5V) Rechargeable battery use: No Continuous use operating time: Approximately 1 year