✔️Product Features:
【INDEX FINGER TRACKBALL】
Equipped with a 44mm trackball, move your cursor with one finger movement instead of moving your wrist and arm. It will effectively reduce fatigue and strain for your wrist and arm.

【Ergonomic Design】
The design of the ultra long hand rest allows this mouse to fully fit your palm, it can reduce arm strain and keep your hands in the most comfortable position at all times

【Whisper-quiet Click】
5 DPI levels (100/200/400/800/1600 DPI)

【Rehcargeable Mouse】
Equipped with build-in rechargeable battery, no need to replace the battery, you can recharge the mouse easily with the Type-c cable included in package

【One mouse for three devices】
This trackball mouse has triple connection modes. You can control three devices at the same time,

【Trackballs in different positions】
ProtoArc EM01 keep your palm in a nutural position
ProtoArc EM03 free your thumb and wrist

⚠️Please Pay Attention Before Placing Your Orders:
After long-term use, please remove the trackball and wipe with a soft cloth to ensure the trackball roll smoothly;
The backward and forward button is not fully compatible with M.c OS;

Press and hold the scroll wheel and the right button simultaneously for 5 seconds to change DPI;

The mouse can be connected with 2.4G (USB dongle) + Bluetooth1/Bluetooth2 (without the dongle);