1) 2.4GHz High speed

2) Low pressure alarm

3) Precision optical

4) Comfortable feel

5) Operating frequency: 2.420GHz-2.483GHz

6) Transmission Distance: 10m, 360 Degree

7) Resolution adjustable: 500 / 1000 dpi

8) Tracing system: optical

9) Operating current: 15mA

10) Power supply: 1x 1.5V AAA battery (not included)

11) System requirements: Windows 2000 / XP / VISTA / 7 / Android / Linux / MAC OS

12) Size: 140 x 23 x 16mm