Here I recommend one from aHappyDeal Company, a professional company focus on this kind of product.
Brief Introduction of 2900 2.4GHz Notebook Wireless Optical Sensor Mouse - Blue
Main Feature: - 2.4GHZ Free moving in 10 meters
- 16 automatically switchable working frequency and over 60000 groups of secure encoding to free external interfere
- Nano Super Mini receiver,Plug-and-play
- Built-in storage medium,no need re-code after you replace battery
- Resolution frequency (400-1600CPI) conversion
- Sepecially design to suit Chinese hand,suitable for left/right hand usage
- Built-in Mini receiver design
- Power On/Off function
- Energy-saving technology,2 pieces of AAA alkaline battery supply over 3 months working time
- Low-voltage alarming functio
- Specification: - Wireless carrier frequency:2402 MHz~2480MHz
... [Full description on aHappyDeal]
Supplied by aHappyDeal, Click Here to find the latest price.
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