Q1. After I turn on the mouse, the red light flash and off ?
A1. Please put USB receiver in computer when you text the mouse. Because only when mouse matched the USB receiver, it will work.
Q2. What is the different between Soundand Silent ?
A2. Silent version is mute version, it does not have sound when you press left and right button.
Item Name: 2.4G Wireless Mouse
Buttons: 4 Buttons
Ajustable DPI Switch: 800-2000DPI
Verison: Silent(Mute) / Sound
Color: Black / Gray / Green / Red
WiFi Range: 10M
Battery: 2 * AAA battery 1.5V 【NOT work with 1.2V】 (Not Included)
Key Life: 10 million times
Compatible : Windows / VISTA / MAC…
1 x Wireless Mouse( Without Battery )
1 x USB Receiver
USB Wireless Mouse 2000DPI USB 2.0 Receiver Optical Computer Mouse 2.4GHz Ergonomic Mice For Laptop PC Sound Silent Mouse