Long life, rechargeable Lithium Ion; Charging Status Indicator, battery stops charging automatically when fully charged; Operating Range Up to 15 Meters; Multi-Link receiver connects Up to 3 Sets KBs/Mice; DPI button: 5 adjustable 800-1000-1200-1600-2000 DPI; Customizable shuttle key allows added functions; Transmission: 2.4G; Wireless range: 15m;