Laser Pointer & Slide Changer

This laser pointer includes RF sender and receiver, AAA battery and instruction. The advantage of this product is that you can turn up and down to control the computer’s operation. No need to let computer must on your hand. Frequence is 2.4 GHz and distance is 30 M. Compatible with:windows 98 SE/2000/ME/XP Linux and Mac OS and supports Power point, Excel, Word. Acrobat Reader etc. Main body color can be customized, too.