1,Rechargeable Design: With built in rechargeable battery, no need to change the battery frequently, long term use, greatly improve convenience. 2,Stable Connection: 4G wireless technology ensures stable connection, avoiding frequent disconnection, and providing smooth operation experience. 3,Low Noise: Special quiet design, no noise during use, avoid disturbing others, to provide a more comfortable environment when study or working. 4,Multiple Compatibility: Suitable for a variety of devices, for Macbook, PC, computer, laptop, to meet the needs of different users. 5,Sensitive and Accurate: Accurate optical sensors provide sensitive tracking and accurate control to improve work efficiency, providing smooth and comfortable use. 1 x Wireless USB Mouse1 x Charging Cable1 x Receiver Item Type: Wireless USB MouseMaterial: ABSBattery Type: Lithium Battery 800mAh (Shipped With Battery) Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.