◆Specifications
Material: High quality 304 stainless steel
Maximum Range: 50 meters
Size : 5 x 0.5 x 0.5 in (13cm*1.3cm*1.3cm)
Input Voltage : 5V, which is easily to be charged by USB plug
Battery : 500Am, which can be used for more than 3 hours and it only need to be charged 90-120 minutes
◆Package List
10 X USB penlights
10 X usb cables