1. Slim, ergonomically-designed 2.4 GHz wireless mouse, ideal for home or office use.
2. Compatible with most laptop and desktop computers via USB receiver (packed in the mouse).
3. Optical tracking technology, works on many different surfaces.
4. 16 wireless working channels, automatic frequency jumping.
RF carrier: 2402-2480MHz
RF operation channel: 16, auto frequency hopping
USB: USB 2.0
Operation systems: Windows 2000, Me, XP, Vista, Win 7
Power: 2 * AAA battery (not included)
Rated operation current: 15mA, 1.5V
Please Note:This mouse all don't have on/off switch . It is normal.thanks.
1 * Mouse for PC
1 * USB receiver