Description: Ergonomic Design: The shape of the mouse is designed according to the curves of the human body, reducing the discomfort you feel when using the mouse in daily work and improving work efficiency.Optical Sensor: Vertical mouse uses an optical sensor to accurately track mouse movement; 1600dpi high resolution, stable override is suitable for most common surfaces.USB Adapter: Ergonomic mouse, plug and play USB interface, no installation and pairing required.Widely Applicable: Rechargeable mice is suitable for laptops and desktop computers, convenient for home and office use.Premium Material: PC mice is made of quality plastic material, with soft rubber wrapped rollers for more comfortable use. Specification: Charging Voltage: DC5VWorking Current: 10mAConnection Method: 2.4Ghz wireless connectionResolution: 1200-1400-1600DP1Roller Life: 100W timesSwitch Life: 500W timesWireless Frequency: 2402-2480MhzOperating System: for /for AndroidMaterial: Plastic MaterialProduct Size: 125mmx62mmx76mm Package Includes: 1 Vertical Mouse Note: Please allow slightly errors 1-2cm differences due to manual measurement.