Material: Acrylic+ABS
Size: 235*93*40mm
Temperature range: 0℃ - 50℃(±5℃)
Battery: CR2032 (for memory time when cut off power, Battery not included, clock is powered by USB cable)

Package included:
1 x LED clock (With box)
1 x USB cable (Adapter not included)
1 x User manual (Instruction picture is attached at the product description)

Notice:
①Battery just for memory function, it works by usb cable.