A-Red Wireless Rechargeable Trackball Mouse — Ergonomic Thumb Control, Adjustable DPI, 6-Button, Bluetooth + 2.4G (Up to 3 Devices)

Comfort-first ergonomic trackball: Use the smooth thumb-operated trackball to move the cursor without shifting your wrist or arm. The mouse’s angled shape keeps your palm in a natural position to reduce muscle strain for all-day use, and its compact footprint is ideal for tight or cluttered spaces like small desks, couches, beds, or a narrow chair writing board. Precise, adjustable tracking: Enjoy accurate cursor control and smooth tracking across most surfaces; adjustable DPI lets you tailor sensitivity for detailed work or fast navigation. True wireless flexibility: Pair with up to 3 devices via Bluetooth or the included 2.4G USB dongle, and switch between paired devices using the selector button on the bottom. (KINDLY REMINDER: The 2.4G USB receiver is stored at the bottom of the wireless trackball mouse.) Rechargeable power: A built-in rechargeable battery provides long runtime — for best results, fully charge the bluetooth trackball mouse before first use. Use only the supplied charging cable and avoid fast chargers; charge from a computer USB port or a 5V charger. High-performance controls: The 6-button layout includes back and forward buttons to boost productivity and comfort. Note: All buttons on this wireless trackball mouse are not programmable.