Connectivity: Bluetooth/2.4GHz Bluetooth Version: 5.0 Connecting devices: can simultaneously connect 3 devices (one 2.4G, two BT) Transmission Distance: 10m/33ft Max (no blocking) DPI (Sensitivity): 1000/1600/2000/4000 DPI Battery: 1ΧAA Alkaline Battery Compatible Systems: Windows 7/8.1/10/11,macOS 10.5 or later,Linux,Chrome OS,Android 5.0 or later