Features: 100% brand new and high quality. 2.4GHz wireless provides a powerful and reliable connection, convenient to use. Slim ergonomic design will fit in your palm, comfortable to grip and avoid tired. With 4 keys, include scroll wheel, page forward/backward buttons for easy Internet surfing. Portable and weight light, very convenient to carry and store. Specifications: Material: Plastic Power Supply: 2* 500-1200mAh AAA battery(Not Included) Interface: USB Output Voltage: 1.5V Wireless Technology: 2.4GHz Wireless Distance: 10 meters Button Number: 4 buttons Package Include: 1 * Wireless Mouse 1 * USB Receiver Wireless Mouse: The 2 4G wireless mode is suitable for computers with a USB port, providing a reliable connection within 10 meters The cursor is smooth, fast, and precise The USB receiver is inserted next to the battery compartment of the mouse, which requires opening the top cover Note: Requires 1 AAA battery (not included) Single AA Battery Required: This battery-operated mouse can be powered by just 1 AA battery (not included) Thanks to special chips, it automatically enters energy-saving mode after 1 minute of inactivity and sleep mode after 8 minutes, extending the mouse's lifespan up to 15 months Adjustable 3 DPI Settings: with 3 DPI levels (1000-1600-2400), you can easily change the cursor sensitivity for smoother tracking on various surfaces, meeting both everyday and gaming needs The optical laser ensures quick response, precise movement, and smoother tracking Portable and Ergonomic Design: The symmetrical and ergonomic design fits comfortably in your hand, preventing fatigue even during long use Its compact size makes it easy to carry wherever you go, whether at home, work, or on the go, providing an exceptional user experience Automatic Shutdown and Energy Saving: The wireless mouse automatically enters sleep mode to conserve energy if not used for a few minutes Click any button to wake it up