Office Optical 2400 DPI Black. Right-hand RF Wireless + Bluetooth 20 m. Scroll type: Wheel Buttons quantity: 5. Power source: Batteries. Built-in battery Rechargeable Lithium-Ion (Li-Ion) 300 mAh. This product is a rechargeable wireless mouse with dual 2.4Ghz & Bluetooth wireless connectivity. You have the choice to connect either via Bluetooth or via the USB-A dongle with 2.4 Ghz wireless technology. Its selector device allows three devices to be connected separately and easily selected. Its dual USB-A and USB-C connectivity makes it compatible with all devices. 5 adjustable speed levels for optimum precision. Its built-in rechargeable battery combined with its economy mode gives it an autonomy of up to 6 months after a single full charge. Its ergonomic, ambidextrous and lightweight design offers optimal comfort during use. 2.4Ghz wireless technology offering freedom of movement up to 20 meters and up to 10 meters with Bluetooth. A plug and play installation allowing you to be operational as soon as plugged in. 5 buttons and a scroll wheel, perfect for professional use. Compatible with Windows, Mac OS, ChromeOS and Android. Mouse. Frequency band. 2.4 GHz.