The latest design
1). Hardware resolution: 800CPI & 1600CPI adjustable (by pressing both right and left buttons to switch)
2). USB receiver, Nano receiver can be stored inside of the mouse
3). Wireless range: Up to 10 meters
4). Plug and play, no need to set up the RF ID
5). No interference with each other.
6). Ultra-low power consumption, battery life up to 3 months for normal office use
7). With power on-off switch on the bottom
8). Colors available: White, Black

Materials: Pure ABS for housing and quality PCBA inside, quality is guaranteed
Keystroke lifetime: 3, 000, 000 cycles
Compatible with Windows 98, 2000, NT, ME, XP, Windows 7 and Mac
Packaging: White Box or Gift Box
CE, FCC certified and RoHS compliant