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Arion Rapoo 5G wireless optical mouse 3920P is designed with new SURFREE technology, making free moving on all surfaces, even on reflective & transparent glasses.

Rapoo's 4D scroll wheel, adjustable 880/1650 DPI tracking engine, advanced programmable buttons, latest energy saving technology, stylish & portable design make it a powerful & fashionable MUST-HAVE.

5G SURFREE Mouse Specifications
Ergonomic:Yes
Programming Button:Yes
Max. Acceleration: 20G
Resolution: 880-1650 adjustable DPI
Mouse Lifetime: 10 Million Key-press
Power Supply: 2x AA alkaline batteries
Dimension: 93(L) x 62(W) x 34(H) mm + / - 0.5 mm

System Requirements
Windows 7/8/10, Windows Vista, Windows XP with USB Port

Contents of ARION Retail Package
1 x Wireless Mouse
1 x Nano receiver
2 x AA alkaline batteries(pre-installed)
1 x Quick start guide

36:T44a,I already have the Logitech Anywhere MX mouse and I just loved it but the back end was a little to high sitting in my palm. It was an almost perfect mouse.The Rapoo 3920p 5G was almost perfect too but the 4D scroll wheel sits about 1-2 mm too low, it makes the left and right clicks of the wheel a little difficult to manage. The wheel itself feels like it drags a little too. Also the thumb buttons on the left side feel a little clanky, it would be nice if they had dampeners to soften the click much like the Logitech Anywhere MX does. The back end sits at a perfect height.As far as reception and tracking go, my Logitech Anywhere MX would kind of get jerky and not track as well whenever I turned on