left-handed mouse, rechargeable 2.4g wireless ergonomic vertical mice with usb receiver, 6 buttons and 3 adjustable dpi 800/1200/1600 for laptop computer pc desktop (left hand) sunffice <b>how to use:</b><br><br> 1.turn on the power switch,the indicator flashes red light,if the flash does not light, please charge it first.<br><br> 2.plug the receiver into your device(the receiver is at the bottom of the mouse).<br><br> 3. wait a moment, the mouse is connected and ready to use.<br><br> <b>notes:</b><br><br> if still not work,please take actions below:<br><br> 1.turn off the mouse switch,pull down the usb receiver from computer,pull down the keyboard and take away to avoid interference;<br><br> 2.plug in the usb receiver,turn on the mouse switch at same time,get the mouse colse distance with the usb receiver.<br><br> 3.you can try the usb receiver on different usb port or computer.<br><br> <b>specification:</b><br><br> high resolution: 800/1200/1600dpi <br><br> effective: 10 meters <br><br> net weight: about 114g <br><br> power:bulit-in battery<br><br> dimensions :about 123*75*62mm<br><br> <b>feature:</b><br><br> tired of using the traditional grip? take a break from overly-clunky or uncomfortably tiny mice. the ergonomically-designed thumb rests and grips fit the contour of your palm for maximum comfort. <br><br> six buttons give you improved control over your computer's systems. whether dragging and dropping, selecting large volumes of data, or casually gaming, this mouse provides a low-cost, effective solution for multiple computing needs.<br><br> easily adjusts the sensitivity of the mouse between 3 dpi levels (800/1200/1600) to suit both ordinary and gaming needs. optical laser allows for quick response, precise movement, and smoother tracking. <br><br> batteries no longer need to be replaced frequently. recharge quick-connect design allows you to switch from wireless to a charging cable connection so you never run out of power.<br><br> <b>package includes: </b><br><br> 1 * wireless mouse<br><br> 1 * usb receiver(note: the usb receiver at the bottom of mouse<br><br> 1 * usb charging cable<br><br>1 * manual