TLP-78 Red Laser Pointer, Battery Operated This is one of the lightest and most compact laser pointers that complies with domestic standards. It's easy to use, and uses AAA batteries. It meets Class 2 safety standards and is easily operated with a red button. I'm selling it because I no longer have a use for it. Operation has been confirmed (see photo 4). Includes box, instruction manual, and AAA batteries (box has some minor stains). Product Specifications - Manufacturer: Sakura Cray-Pas - Size: 97.6 x 26 x 14.5mm - Weight: Approximately 40g (including batteries) - Beam Shape: Dot - Weight (including batteries): Approximately 40g - Dimensions: W92 x D26 x H14.5mm - Batteries: AAA x 2 - Wavelength (nm): 650nm - Laser Color: Red (650nm) - Continuous Operating Time: Approximately 30 hours Thank you for looking.