I am selling this because I don't use it. It is a new, unopened item. Specifications ■ Laser: Red / 635nm ■ Maximum operating range: 20m ■ Timer: None ■ Vibration: None ■ Battery level: Color display ■ Body size (mm): 29 x 115 x 24 ■ Body weight (g): 53 ■ Receiver weight (g): 2.6 ■ Supported OS: Windows/Mac ■ Supported software: PowerPoint/Keynote/PDF ■ Power supply: 2 AAA batteries ■ Other: Antibacterial Product Features ■ Easy to see from a distance! Bright laser Employs a red laser that is about twice as bright* for clear visibility! ■ Wireless page turning during presentations! Simply plug the small receiver into your computer to connect! Connect to Windows/Mac computers and operate slideshows during presentations. (Supports PowerPoint/Keynote/PDF.) *Compatible with the latest MacOS "MacOS Sierra". *The start and end functions of the slideshow cannot be used. ■ Reliable battery level indicator When the power is turned on, the LED light displays the battery level in 3 stages, so you can use it comfortably without worrying about sudden battery drain. ■ Lightweight, so it's not tiring to hold for long periods! ■ Compact, so it's easy to carry around! ■ Antibacterial specification! Safe to use when shared by multiple people! ■ Comes with a dedicated pouch!