USB, Laser class: Class 2, EN 60825-1-2014, Max Output: Less than 1 mW, Wave Length: 640~660 nm (red light), Wireless technology: RF 2.4 GHz, Presente
USB, Laser class: Class 2, EN 60825-1-2014, Max Output: Less than 1 mW, Wave Length: 640~660 nm (red light), Wireless technology: RF 2.4 GHz, Presente