Rapoo 3900P 5G Power Efficient Ergonomic Wireless Mouse

• Using the second-generation 5G wireless transmission technology and staying away from the 2.4G wireless channel, interference from Bluetooth and Wi-Fi equipment is avoided.
  
• The applied new laser engine technology only consumes 25% of the power that other standard laser mice require. 
  
• Use your laser mouse for an ultra-long time without replacing the batteries.
  
• Scroll up and down, or from side to side. For accurate navigation and control in your files, documents and internet browser.).
  
• Choose for low DPI for accuracy or high DPI for fast movement. You can instantly switch between 800 and 1600 DPI.
  
• So small and unobtrusive, you can plug it into a USB-port and forget about it
  
• ultralow power leser sensor, 4d scroll wheel for fast browsing, 24 months battery life