2.4G Ergonomic Vertical Mouse 6 Buttons 2400 DPI Right Hand Mice with Wrist mat For PC Laptop Office Computer

Specification
Button number:6 buttons
Tracking System: optical
Frequency: 2405 MHz-2476 MHz
Effective distance: 10m
Working voltage/current: 3V/4mA
Button life: 3 million times
Roller life: 1.2 million turn
Product dimensions: 134"96"83mm
Product weight: 100±5g
Resolution: 1000-1600-2400DPI
Rate of return: 250Hz

Package Contents (attachment)
Mouse x1
Receiverx1
Instructionsx1

System requirements
IBM or compatible computer
Windows: 2000/ME/XP (x64) /Vista/7/8
Mac OSX (over V10.4)
An available USB port

What to do if the mouse has no response?
1.According to the positive and negative sign, please install it in the battery box correctly,
2.Please try to replace the receiver with an USB interface.
3.Make sure the power switch on the bottom of the mouse is "on" position.
4.Try to restart the computer,