YUMQUA Y-10L Portable Finger Handheld Wireless Built-in Laser Pointer USB Trackball Mouse for Left/Right Handed Users(Black) Laptop Mac Lovers YUMQUA Y-10L Wireless Trackball mouse with built-in laser pointer making it an essential nice assistant of demonstrations or presentations. Thumb-controlled trackball, Off-table design for free and comfortable operation. Y-10L Wireless Trackball Mouse can greatly ease the harm of palm joint or muscle for long time using mouse. Dolphin shape design with left/right clickers, fit left and right handed users. Connects via USB Port,Plug and play, no software required. Compatible system: Windows, Linux,Mac OS. Free replacement and after sale service available, please buy with confidence.