<p><b>Product Features:</b></p> <p>Ensures reliable connection with an increased working distance of up to 33' (15m) and eliminates delays, dropouts and interference.（USB receiver hidden in the battery compartment）;</p> <p>800/1200/1600 DPI Resolution Optical Tracking Technology provides more sensitivity than standard optical mice for smooth and precise tracking on a wide range of surfaces.</p> <p>The perfect ergonomic contours design provides all-day comfortable even after long hours using. Also, the led blue light can be switched ON/OFF by the switch button at the bottom which can bring you a cool feeling.</p> <p>The USB Wireless Mouse will be switched off automatically when the Nano Receiver is disconnected, or the PC is power off</p> <p><b>Product Description:</b></p> <p>Working Type: Optical interface type</p> <p>Battery: 2 * AAA <b>(not included)</b></p> <p>Optical Resolution: 1600DPI</p> <p>Mouse LED: Blue LED Light or red LED light</p> <p>Frame rate: 3000 frames / sec.</p> <p>Maximum acceleration: 20G</p> <p>Ultra-precise Scroll Wheel</p> <p>Customize DPI Switch: 800/1200/1600dpi</p> <p>Ultra-quite and Low-friction</p> <p>Resolution adjustable in driverless-free drive</p> <p>Switch Life: 5 million cycle</p> <p>Special Edition for Gaming,built-in weight</p> <p>Optical technology works on most surfaces</p> <p>Intelligent connectivity. no need to code, plug & play</p> <p>Operating distance: 10M</p> <p>Rated working current: 6mA</p> <p>Transmission rate: 1mbil/sec</p> <p>Product size: 106*68*38mm</p> <p>Modulation method: GFSK</p> <p>Rated operating voltage: 1.9-3.6V</p> <p>Tracking system: optics</p> <p>USB: 1.1-2.0 Specification, no drive</p> <p>Wireless frequency: 2.402GHz-2.442GHz</p>