Features: High quality material and superb workmanship for a comfortable hand feel.The mouse is mute, and the wireless transmission distance is up to 20M.11mA working current, intelligent power saving, long standby time.250Hz return rate, no delay in use, no frame skipping, smoother office experience.Compatible for Win2000 / WinNT4.0 / WinXP / Win.NET / Win7/8/10 / Mac OS X10.8. Specification: Number of Buttons: 3Key + 3D Compatible System: For Win2000 / WinNT4.0 / WinXP / Win.NET / Win7/8/10 / Mac OS X10.8 Return Rate: 250Hz Working Frequency: 2.4G Switch: For Kailh 3 Million MUTE switch Resolution: 1600 DPI Working Current: 11mA Battery Model: AA (not included) Color: White, Black, Grey, Mint Green, Pink (Optional) Package List: 1 x Mouse 1 x Receiver See moreThe mouse is mute, and the wireless transmission distance is up to 20M. Compatible for Win2000 / WinNT4.0 / WinXP / Win.NET / Win7/8/10 / Mac OS X10.8. 250Hz return rate, no delay in use, no frame skipping, smoother office experience. High quality material and superb workmanship for a comfortable hand feel. 11mA working current, intelligent power saving, long standby time.