- Color: Black<br />- Model: 201M-TRF<br />- 2.4GHz wireless transmission<br />- 96-key design<br />- Operation range: 10~32.8m<br />- Supports Windows 2000 / XP / Vista / Win7<br />- Working temperature: -10 ~ 60'C<br />- Powered by 2 x AA batteries (included)<br />- Comes with USB receiver<br /><br />                                                                                                                                Dimensions: 10.24 in x 4.02 in x 0.83 in (26.0 cm x 10.2 cm x 2.1 cm)<br />Weight: 8.29 oz (235 g)<br /><br />