Features: Adopt 2.4G wireless transmission technology, the transmission distance up to 15m. No driver required, plug and play. Innovative one-click back to desktop design, anti-peep, protects your privacy. Non-slip metal roller, more convenient and durable. Humanized silent button design, creates a quiet and comfortable environment. Ergonomic design, comfortable touch, delicate shape, fit the hand, can effectively reduce hand fatigue. Three adjustable DPI(800-1200-1600DPI) provide sensitive response and smooth operation, can position accurately in fast moving. Slim design, small and portable, easy to carry. Built-in 500mAh large capacity rechargeable battery, can be used for several months. Adopt Low power and energy saving technology, no need to charge the battery repeatedlymore convenient to use. Specification: Model: M103 Material: ABS Type: Ergonomics Optical Mouse Color: Black/White/Grey/Rose Gold/Pink/Silver/Blue(optional) Type: 2.4GHz Wireless Wireless distance: 15m Power Type: Rechargeable Number of keys: 4 keys DPI: 800-1200-1600DPI Operation Mode: Opto-electronic Key life: 5 million times Battery capacity: 500mAh(Rechargeable lithium battery) Working voltage/current: 3.7V/20mA Item size: 11.3 * 5.7 * 2.5cm /4.45 * 2.24 * 0.98in(L * W * H) Item weight: Approx.67.3g /2.37oz Package size: 12 * 7 * 3.5cm /4.72 * 2.76 * 1.38in(L * W * H) Package weight: 96g /3.39oz Note: The color of receiver and charging cable refer to the actual product! Package List: 1 * Wireless mouse 1 * USB receiver 1 * USB cable 1 * User manual