Description: Three Connection Modes: The mouse Bluetooth 4.0 + 2.4G Wireless + USB Type-C 3 modes connection, you can choose your favorite connection mode, very convenient to use. Connect Three Devices Simultaneously: After the connection is completed, press the switch button at the bottom of the mouse to easily switch between multiple mode devices. 5 Adjustable DPI: High precision of the 800-1200-1600-2400-3200 DPI (cycle) ensures rapid positioning on object in using process. High Efficiency Side Wheel: The mouse adds side wheel for high efficiency in work. In web browsing and office work, the side wheel can move pages left and right. Energy-Saving Battery & Long Service Life: Low power consumption processing chip and 500mAH lithium battery provide long service life. High Speed Return Rate: The 250Hz high speed return rate makes wireless mouse in the work use of no delay and no frame skipping, more smoothly in office use. Specification: Model: Ajazz i660T Engine: Optical Mouse resolution: 800-1200-1600-2400-3200DPI Lifetime: 10 million times Mouse size: 11.8 * 7.7 * 4.6cm /4.65 * 3.03 * 1.81in(L * W * H) Working voltage: 3.7V Working current: 3.01mA Return rate: 125Hz Package Includes: 1 * Mouse 2 * Receiver 2 * Cable 1 * Manual