Detail:Material: Wood & PlasticShape: CuboidDimension: 15cm x 4cm x 7cmPackage size: 17 x 4.5 x 9cmUSB Cable length: 100cmAdaptor Input / Battery Type: USB power supply cable or 4pcs AAA Batteries (Batteries are not included)Adapter Output: 5VWe recommend to use USB cable to support the power. The clock worked with battery can only last about 2-5days.Quantity: 1 pcFeature:- Display Mode: Time/Temperature display at the same time- With Sound Control Mode- Calender: 2000/1/1-2099/12/31- 12/24 hour format selectable- Display temperature of ��/��F- Alarm function，three alarms，with "beep" lasting for 1 minute- Work day set: alarm by Monday to Friday， Saturday to Sunday is closed- LED display， easy to view even at nightPackage includes:1 x Digital wooden alarm clock with LED display1 x USB power supply cable1 x English user manual