● ★ ERGONOMIC DESIGN - EIGIIS handheld trackball mouse wireless can greatly avoide the harm of palm and muscle of your wrist for long time using mouse. ATTENTION: NO LASER POINTER. IF YOUR MOUSE IS NOT WORKING WHEN YOU WENT A FEW MINUTES WITHOUT USING IT, PLS KINDLY CLICK TO WAKE IT UP.IF STILL NOT WORKING, PLS CHECK BELOW ISSUES: 1, CHANGE BATTERY AND TRY; OR 2, TURN IT OFF AND ON; OR 3, REMOVE THE USB RECEIVER AND TRY IT. IF STILL NOT WORKING, PLS DON'T HESITATE TO CONTACT US FOR A REPLACEMENT
● ★ TRACKBALL COMFORT - Ergonomic handheld trackball mouse wireless is a best choose to reduce the chances for Arthritis and CTS suffers. Hold EIGIIS ergonomic handheld trackball mouse wireless in your hand like a trigger and use your thumb to move around. Sculpted shape supports your hand staying in one place, move the cursor without moving your arm.Suitable for both left and right hand - New style, no space limitation, left/right clickers, fit left and right handed users.
● ★ ADJUSTABLE DPI - EIGIIS ergonomic wireless handheld finger trackball mouse have 800/1200/1400/1600 DPI resolution optical tracking technology that provides higher sensitivity than standard optical mice.EIGIIS handheld trackball mouse wireless have a Sensitive rolling ball and frequency stable 2.4GHz receiver. Powered by One AAA battery (not included)
● ★ WIDE APPLICATION - EIGIIS handheld trackball mouse wireless including USB 2.0 interface, plug and play, no software required. Suitable for laptops and desktops, but NOT for tablet. Compatible with: Windows 98/ 2000 / XP / VISTA / Win7/ Win10/ Linux / Unix / Mac / OS.

EIGIIS is a company specializing in electronics, where we will provide you with quality products and first-class services.
EIGIIS wireless trackball mouse has a special design and is very ergonomic. It avoids any damage to your wrists and muscles and greatly reduces your chances of suffering from arthritis.

Questions & Answers:
Q: What is the range of the mouse?
A: Wireless receiving distance: About 10M

Q: Can you tell me the compatibility of the mouse?
A: Compatible with: Windows 98/ 2000 / XP / VISTA / win 7/win10/ Linux / Unix / Mac OS, but NOT for tablet.

Specifications:
Power: With One AAA battery (not included)
Color: Black
Scrolling Type: Scroll Wheel/Trackball
Size: 11x6x5cm/ 4.3"x2.3"x1.9"
Buttons: Left, Right, Scroll wheel, DPI, ESC, Enter
Pointing Device Host Interface: USB Receiver

Package included:
1x Wireless Trackball Mouse
1x USB Receiver
1 x User Manual
1 x Retail Box