Description: Features: Brand new and high quality. 2.4 GHz Wireless Mouse Optical Technology Number of Keys: 3 Battery: 2xAAA (not included) 10m Effective Distance Built-in Energy Saving System Stylish and Ergonomic Design Scroll Easily in Any Direction Comfortable to Use Ultra-thin User Manual: 1. Open the battery cover. 2. Remove the USB receiver from the battery compartment and plug it into a USB host on your PC. 3. Insert 2 AAA batteries with correct polarity (+/-) as indicated. 4. Close the battery cover. 5. Turn on the power switch. 6. No pairing needed, plug and play. 7. To click left, middle, and right, press down. Use the scroll wheel as shown in pic1 to scroll up and down. 8. When not in use, the nano receiver can be stored in the battery compartment. Precautions: Insert alkaline AAA batteries, noting battery polarity to avoid damaging the device. Turn off the mouse power switch to conserve battery life when not using your computer. Low battery power will prevent use; replace batteries with new ones. Specifications: Type: Mouse Features: Mini Material: Plastic, Metal System Support: OS for Windows XP 7 8 10 Interface: Wireless Connection: Wireless Receiver: Included Operating Voltage: 3V Operating Current: 15mA Optical Resolution: 1200DPI Color: Black Size: 112×57×20 mm/4.40×2.24×0.79 inches (approx.) Quantity: 1 PC (other accessories demo in the picture is not included) Note: 1. Transition: 1cm = 10mm = 0.39 inches 2. Please allow 0-1cm error due to manual measurement. Please ensure you don't mind before bidding. 3. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Includes: 1 X Mouse