Wireless trackball mouse handheld 2.4G wireless mouse usb mouse W11

http://www.youmouse.cn/ see pictures for detail

this one is especially useful for disabled people, someone lying on bed, could not sit in front of the computer.

it does not need a flat base

Features: *OFF-TABLE USE,WITHOUT THE DESKTOP SUPPORT; *PERFECT FOR HOME,LIVING ROOM.OFFICE,ON THE PLANE,LAPTOP AND SO ON;
*DOUBLE USE FUNCTION;ALSO CAN USE ON THE TABLE; *THE TRACKBALL SAVES DESK SPACE,REDUCE HAND AND WRIST MOVEMENT; *THE THUMB OPERATED TRACKBALL COMBINES RELIABLE OPTICAL TECHNOLOGY WITH AN INNOVATIVE SCROLL WHEEL THAT ACTS AS A THIRD BUTTON; *PLUG AND PLAY,FREE DRIVER; *WIRELESS DISTANCE :5M

• can be used in hand, no graphic support, easy to adjust the sitting position, which greatly ease the long-term use of mouse Standard wrist pain and cervical spine caused discomfort Roll the trackball * body of the thumb, moving easy, accurate positioning, click convenience
• Roll the trackball placed in any position to use, like how to use to how to use
• either the right hand, can also be used to achieve left-handed
• Fully ergonomic design, holding gold in hand, as eggs, comfortable
• for a variety of casual games, you can easily play any position, the wrist is not acid, not the neck pain
• highlight the quality and level of business gifts, send gift to send to friends family unlimited mind
• 2.4G without interference, communication distance of 10 meters, sitting in the living room sofa in the comfortable easy to control media center
• trackball 400dpi, 600dpi, 800dpi, 1000dpi adjustable
• size 11cm * 6cm * 5cm PATENTED DESIGN,MULTIPURPOSE INTELLIGENT HAND-HELD MOSE PACKAGE: 1 x wireless trackball mouse 1 x USB charging cable 1 x USB receiver

plug & play compatiable with windows, mac and linux USB interface resolution 1000dpi 10 M distance 2.4GHz 11cm x 5cm 6cm Black