A4Tech G3-280N has Advanced 2.4GHz powerful wireless reference to distance up to 10-15m. It's Auto-Channel stablizing Plug and leave-in nano receiver provides essentially no delays or connection conflicts.Go longer between battery changes with energy efficient engineering.Professional chip ensures longer distance and stabler connection.Adjustable 4-level power saving. it'll be in sleep mode in 0.2s of inactivity.16 gestures to perform selectable hotkey commands.