1.Package with one USB cable ¡¢ batteries only backup if use batteries only can work about 2-7 days. 2.China customs can't pass battery so we take out the momery battery CR2032 . 3.Material: MDF+PVC¡¢not real wood .4. Temperature also have 3 degrees difference . Open sound control temperature not correct . Feature:1.Time display: 12-hour or 24-hour mode2. Display mode: DP-2:Time/Temperature¡¢  DP-1:Time/Temperature and Year/Month/Date automatically take turns 3. Sound control mode (Power-saving mode) ¡¢ need make sound wake up .4. Work day set: Alarm by Monday to Friday¡¢ Saturday and Sunday is closed5. Three group alarm6. Three luminance to set (L1?aL2?aL3)¡¢ 18:00-07:00 will to be L3 Color:Brown with Red display          Black with White          Black with Green          Black with Blue          Black with RedSize:150*70*40mm (LxWxH)