USB A + BLUETOOTH MULTI DEVICE MOUSE: Ergonomic mouse with 3 modes of connection (BT5.0 + BT3.0 + 2.4GHz). Easily switch between 3 devices via the toggle button. Efficiently multitask between laptops, tablets and desktops PRECISE CONTROL: The bluetooth mouse uses 4800/3200/2400/1600/1200/800 DPI resolution optical tracking technology to provide higher sensitivity than standard optical mice, allowing smooth and precise tracking on a variety of surfaces RECHARGEABLE AND ENERGY EFFICIENT: This vertical wireless mouse comes with a Type-C cable and can last for 1-2 months of intensive use with just a 1.5 hour charge. In addition, the silent mouse supports Wake-on-Button function and auto-sleep mode to save power PERFECT FOR MEDIUM TO LARGE HANDS: The TECKNET wireless ergonomic mouse is designed for medium to large right hands, this vertical mouse measures 4.73 x 2.96 x 2.48 inches (12 x 7.5 x 6.3 cm). For optimal comfort, we recommend measuring your hand prior to purchase (see produc