2.4G Stable Wireless Transmission Safer and more precise. The transmission distance can reach up to 10 meters (about 30ft). Virtually no delays or dropouts. No need any driver. Just plug and play! Ultra Energy Saving & Durable Multi-level power saving mode. Less power consumption. There is a button at the bottom of the mouse with three adjustable modes: ON, OFF, and ON (with backlight). The mouse will be in auto-sleep mode in 8 minutes of inactivity. It also passed 500,0000 times keystroke test and performs well. Ergonomic Design & LED Light Colors The LED light color has 7 adjustable levels with the change of DPI, which you can enjoy. Also comfortable and good hand feeling can be used for a long time without fatigue. Rechargable Function Built-in 500Mah lithium battery. You can charge it with our USB charging cable. Wide Compatibility Compatible with Windows XP / Vista / Win7 / Win8 / Win10 / ME / 2000 / Mac10.x. etc.