*Ergonomic design: change the traditional way of grasping the mouse, operate with fingers, and fit comfortably on the hand. The left and right mouse buttons are located in a transparent position, which is easy to click, effectively relieve the pressure on the carpal tunnel area and ensure the position of the wrist and arm. Movement is more stable *You can set up a signature pen for handwriting signature system, electronic approval; computer teaching, multimedia applications, you can write at will on the computer desk; smart network TV remote operation is very convenient; handwriting input, with Sogou handwriting input system can replace the handwriting board ; Real-time hand-drawing, can accurately draw and edit graphics *Cursor speed switching function: Your mouse provides two speeds of 500CP1/100CP1 for you to choose, the initial setting value is 1000CPI, you can use the CPI speed switch button to get the cursor speed you like *High technology, long effective distance: 2.4GHz wireless technology, to ensure strong signal, stable operation, running distance up to 10 meters/33 feet, to meet your daily needs. You can control your computer at will on the bed or sofa. The mouse is powered by 1 AA (not included), equipped with a USB receiver, plug and play, no other drivers required *2.4Ghz wireless transmission effective distance is 8-10 meters, AVAGO 5090 photoelectric chip is linear and stable, small and light: 140*20*15mm small size, can be used in limited space, perfectly fits pockets, easy to carry