Features: 2.4G wireless transmission, 10m transmission distance, stable and fast.Powerful optical engine provides accurate click, quick response and stable signal.3 adjustable DPI(1000-1600-2400DPI), easy to switch, adapt to a wide range of material surfaces, accurate and reliable position, meet your daily office and gaming needs.Ergonomic design, the vertical type mouse fits the palm and fingers, reduces discomfort when using, bid farewell to the "mouse hand".Equipped with USB receiver, plug and play, convenient to use.Specification:Brand: ZELOTES Model: F-17Button number6Tracking system: OpticalConnection mode: 2.4G wirelessEffective distance: 10mDPI: 1000-1600-2400DPIFrequency: 2405MHz-2476MHzButton life: 3 million timesRoller life: 1.2 million timesBattery: 1*AA battery(not included)Working voltage/current: 3V/4mASupported system: Windows 2000/ME/XP(64bit)/Vista/Win7/Win8/Mac OS X(over V10.4)Item size: 13.4 * 9.6 * 8.3cm /5.28 * 3.78 * 3.27inItem weight: Approx. 100g /3.53ozPacking list:1 * Mouse 1 * USB receiver1 * User manual