Laser: Visible green light point Wavelength: 650nm, 532nm, 520nm Laser beam direction: Adjustable up, down, left, right Output power: 5mW Switch type: Tail switch with lock function; compatible with extended tail switch Power source: 16340 rechargeable battery Operating voltage: DC 3.7V Charging voltage: 5V / 1.5A Color: Black Material: Metal Package Contents: 1 x Laser Pen 1 x Battery 1 x Mounting Bracket 1 x Battery Box Note: The package includes only the items listed above. Other accessories are not included. Note: Due to lighting effects and differences in display screens, the color of the item may vary slightly from the images shown. Measurement error allowance is +/- 1-3 cm.