Features 1、2.4GHz wireless technology ensures fast and stable transmission and longer working distances up to 33 feet / 10 meters. 2、Professional optical positioning technology for more accurate positioning. Intelligent mini-receiver, automatic connection, no need for complicated code. 3、With DPI adjustable function, any 360 around the use angle. Press the DPI button to change the cursor sensitivity based on your activity. 4、Ergonomically designed, the mouse cover fits perfectly into your palm. The symmetrical design makes it suitable for both hands. Shark patterns on the side are suitable for eliminating hand fatigue. 5、The number of button life can reach 300W times, the click effect is better, the use comfort is improved, no noise, and quieter. Specification This 2.4GHz wireless mouse uses professional optical positioning technology for more precise positioning. Intelligent mini-receiver, automatic connection, no need for complicated code. With any 360 around the angle of use, the 2.4GHz wireless connection allows you to enjoy wireless operating distances of up to 10 meters. The unique intelligent circuit management design makes the mouse more power efficient. The modern design is perfect for laptop companions for home and office use. Features: 2.4GHz wireless technology ensures fast and stable transmission and longer working distances up to 33 feet / 10 meters. Professional optical positioning technology for more accurate positioning. Intelligent mini-receiver, automatic connection, no need for complicated code. With DPI adjustable function, any 360° around the use angle. Press the DPI button to change the cursor sensitivity based on your activity. Ergonomically designed, the mouse cover fits perfectly into your palm. The symmetrical design makes it suitable for both hands. Shark patterns on the side are suitable for eliminating hand fatigue. The number of button life can reach 300W times, the click effect is better, the use comfort is improved, no noise, and quieter. Using the latest infrared lighting technology, it is more energy-efficient, energy-saving and environmentally friendly, and enjoys a low-carbon life. Specification: Wireless transmission distance: ≥10m Wireless carrier frequency: 2402MHz-2480MHz Wireless working channel: 16 automatic frequency hopping Rated operating current: 8-15mA@3V Button stroke: 0.8mm Button strength: 60-70±10g Key life: 3 million times Product weight: 55g Product size: 10.3 * 6.8 * 3.5cm / 4.1 * 2.7 * 1.4in Photoelectric resolution: 1200dpi (dpi) Interface: USB Number of buttons: 6 (key) Left and right buttons, pulley (can be pressed), forward and backward buttons (browsing web pages and folders), changing the resolution button (below the pulley) Battery: AAA*2 (Without battery) System requirement: Use with Windows 2000/XP/Vista/Linux/Win 7 operation system. Package list: 1 * Wireless Mouse 1 * USB Receiver Note: 1. Operation distance is closely related to the environment. 2. Battery life may be different for personal habit of using mouse. 3. In case of mouse failure,please check battery power and replace it as necessary 4. The mouse will shut off automatically and enter sleeping mode for saving power when it's not used for a long time.To wake it up,press the right or left button. 5. Never waste the battery and will it in fire.Put battery into battery recycle bin. 6. Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. 7. The measurement allowed error is +/- 1-3cm.