ProtoArc Wireless Trackball Mouse, EM04 Ergonomic Bluetooth Rollerball Mouse Rechargeable Computer Laptop Mouse, Thumb Control & 3 Device Connection, Compatible with PC, iPad, Mac, Windows

• ERGONOMIC THUMB TRACKBALL: Equipped with a smooth and precise trackball, move your cursor with your thumb movement instead of moving your wrist and arm
• BLUETOOTH & 2.4G WIRELESS CONNECTION: PLUG and PLAY. This trackball mouse has triple connection modes. You can control three devices at the same time
• RECHARGEABLE & ADJUSTABLE DPI: The Bluetooth Trackball Mouse built-in 450mAh lithium battery. No need to change batteries. Each full charge can stand by for 1 month. 5 DPI levels (200/400/800/1200/1600 DPI) allows you to change the cursor sensitivity easily for more precise tracking
• QUIET CLICKING: Smooth frosted surface and quiet clicks can bring a better user experience and free your worry about bothering others and keep you stay focused while working
• 6 BUTTON HIGH PERFORMANCE: ProtoArc bluetooth trackball mouse is designed with ergonomic and elegant curved shape