Features:
1)wireless optical mouse with mini USB receiver
2)Radio frequency and optical technology
3)Adopts optical orientation technology, high accuracy and reliability
4)Super long working life
5)Freely 360-degree use within 1. 5 - metre radius
6)One channel 256 IDs, no interference even when many users are using together
Package: White box / Blister card
7)2.4Ghz is also available