JOMAA Wireless Trackball Office Bluetooth Silent Ergonomic Vertical Drawing CAD Mouse

1. Index finger trackball Equipped with a 44mm trackball, you can move the cursor with a single finger instead of moving your wrist and arm.It will effectively reduce fatigue and tension in the wrists and arms. 2. Ergonomic design The design of the extra-long handle makes this mouse fit more comfortably in your palm, reducing arm strain and keeping your hand in a comfortable position 3. Silent Click 5 DPI levels: 100/200/400/800/1600 DPI 4. Rechargeable mouse Built-in rechargeable battery, no need to replace batteries, you can easily charge the mouse using the Type-C cable included in the packaging 5. One mouse, three devices This trackball mouse has three connection modes.You can control three devices simultaneously Trackballs in different locations Keep your palm in a natural position Free your thumb and wrist Please note before placing an order: After long-term use, please remove the trackball and wipe it with a soft cloth to ensure smooth rolling of the trackball The back and forward buttons are not fully compatible with Mac; Press and hold the scroll wheel and right button simultaneously for 5 seconds to change the DPI; The mouse can be connected via a 2.4G USB dongle + BT1/BT2 without a dongle