The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. Previous page CUSTOMIZED 3 ADJUSTABLE TILT ANGLES Classic 57 degrees ergonomic mice equip 3 tilt angle designs (-7.5/0/7.5 degrees), allowing you to find the most comfortable hand posture, and reduced "handshake" wrist/muscle strain. ERGONOMIC COMFORTABLE DESIGN 50/57.5/65 degrees are optional, keep your hands, elbows, wrists, and arms in a natural position and reduce the chances of acquiring RSIs, including carpal tunnel syndrome, and muscle strain. Next page VERTICAL MOUSE JIGGLER/MOVER The customized function simulates the movement of a computer mouse and keeps your laptop/PC/Mac awake when you are off the office/online conference. Compare Wireless Mouse iClever TM254 Mouse Add to Cart iClever TM209G Mouse Add to Cart iClever WM101 Mouse Add to Cart iClever MD165 Mouse Add to Cart Customer Reviews 3.9 out of 5 stars 261 4.2 out of 5 stars 4,417 4.2 out of 5 stars 3,799 4.5 out of 5 stars 608 Price $26.99$26.99 $22.99$22.99 $29.99$29.99 $18.99$18.99 Connectivity USB Receiver USB Receiver USB Receiver USB+Bluetooth Compatibility Windows 7/8/10/11 Windows 7/8/10/11 Windows 7/8/10/11 Windows/Mac/iOS/Android Tracking Optical Optical Optical Optical DPI 800-1200-1600-2400 800-1200-1600 1000-1600-2000-2400 800-1200-1600-2400 Ambidextrous Design Right Design Right Design Right Design Right Design Hand Size Fit Small-Middle Small-Middle Small-Middle Small-Middle Features Mouse Jigger, Rechargeable Ergonomic, Silent Click Ergonomic, Silent Click Silent Click, Multi-Devices The ergonomic mouse hurt my hand or not comfortable If you change from a traditional to an ergonomic mouse. It takes about 1 week to get used to. The default angle is 57 degrees. Try to adjust the tilt angle(-7.5,0,7.5) to choose the comfortable one. Stop working, buttons do not work correctly Clean the button with compressed air. Erify the receiver is connected directly to the computer and not to a hub, extender and switch.Repair hardware.Verify USB 3.0 peripheral device is not plugged in.Try a different USB port or computer. Mouse compatibility with devices and system The ergonomic is 2.4G wireless connection, support to connect with PC/laptop/desktop with USB-A port, and compatible with Windows 7/8/10/11. Do not support iPad, iPhone, Smartphone, tablet and Mac with USB-C port. Cursor does not follow mouse movements 1.Charge it for 2 hours. 2.Use a mouse pad. 3.Avoid using your mouse on:1)Glass and other see-through surfaces. 2)Reflective surfaces, such as mirrors and metal desks, 3)Wood grains and grooved surfaces. 4.Try the mouse on a piece of white paper. Mouse compatibility with USB hubs and KVM switches 1.We do not support the use of third-party devices with our mice. They can interfere with communication between a mouse and the computer. 2.Unsupported third-party devices include: KVM switch boxes, Port replicators,Docking stations BS USB hubs.