1) Press and hold the button on the pen, keep projecting time
2) Release it, it is off
3) Time may be adjusted
4) Material: Metal
5) Packing: OPP bag/information pamphlet /+white box/PC 50PCS/inner-case 200PCS/Out-case (Dimension of Out-case: 33*33*29CM) NW: 9.20KGS. GW10.2KGS.
6) Size: 14*138mm