- Model: Rapoo 7100P<br />- Color: Red + black<br />- ABS material housing<br />- Wireless transfer frequency: 5.8GHz<br />- Working range: 10 meters<br />- Resolution: 500 / 1000 DPI<br />- 4D roller: Up / down / left / right<br />- Powered by 2 x AA batteries (included)<br />- Supports Windows XP / Vista / 7<br />- Comes with USB receiver、 software CD and Chinese user manual<br /><br />                                                                                                                                Dimensions: 4.33 in x 2.56 in x 1.38 in (11.0 cm x 6.5 cm x 3.5 cm)<br />Weight: 4.13 oz (117 g)<br /><br />