Compact, wireless presentation remote with 2.4 GHz Wireless USB micro receiver can be stored inside presenter Practical and lightweight design Integrated laser pointer (security class II) Intuitive forward and back buttons and screen blackout option Up to 20 m range Batteries: 2 x AAA (alkaline batteries included) Dimensions: 102 x 46 x 30 mm Compatibility: Windows 2000, Mac OS 10.4. 8 Colour: Black/silver