INFINITER Handy Wireless Remote/Presenter with Red Laser, Black (LR14) A great all-in-one device with Red Laser for presentations; Small light weight which fits your hand well; Four hotkey: page up, page down, play/Esc and blank/recover screen are very easy to use. Output power: Class IIIa, output power is less than 5mW, eye safe laser product. Original Designed & Made in Taiwan with a high-quality manufacturing service and outstandingly lower RMA rate than the industrial average for others made in China. Work flawlessly on Mac, Windows. OS supported for Windows 7, Vista, XP, OS Mac 9.0 or later. Powered by 2 AAA batteries (INCLUDED!!) which is quite convenient and cost effective. Service time up to 10 hours. Plug-and-play 2.4 GHz wireless USB receiver device with no additional software downloads & driver installation required. Built-In docking bay stores receiver for easy pack up and portability. Can easily remote control the mouse for a distance up to more than 15 meters in open space. Ergonomic design and excellent hand feeling. Is very compact and light in weight (53.2g incl. battery) & easy to carry and packed in an elegant gift box. It's elegant & practical gift for the professional who has everything. 3-5mW ultra-bright red laser presenter.