Compatible with: Windows 98 2000 XP VISTA wins 7 Linux UNIX Mac OS, ect.
Color: Black Size: 11*6*5cm/4.3*2.3*1.9inch Wireless receiving distance: About 15M
-Portable finger trackball mouse -with off-table design for free and comfortable operation. It is ideal for laptop users.
-It can greatly ease the harm of palm joint or muscle for long time using mouse -Avoid sitting closely to the monitor and reduce the harm of radiation and eye fatigue -Dolphin shape design with left/right clickers fit left and right handed users. -Plug and play, no software required -2.4GHz Wireless connectivity with working distance within 32ft (10m)