SPECIFICATIONSBattery Included: NoBrand Name: KEBETEMEChoice: yesDPI: 1600Feature 1: Wireless Gaming MouseFeature 2: Wireless MouseFeature 3: Ergonomic USB Receiver MiceFeature 4: Optical Wireless MouseFeature 5: Gaming MiceFeature 6: Gamer Wireless MiceHand Orientation: RightHigh-concerned chemical: NoneInterface Type: USBOrigin: Mainland ChinaPower Type: BatteryType: 2.4Ghz Wirelesssemi_Choice: yes Note: Need 2*AAA battery, not including batteries. Type: 2.4G Optical mouse Mouse Size: mouse ( 120mm) Computer connection: wireless Applicable models: desktop Photoelectric resolution: 1600dpi (dpi) Number of keys: 6 (keys) Interface: USB Wireless transmission frequency: 2.4ghz Whether to support ergonomics: support Adjustable resolution: six gears Operating distance: 10 (m) Working method: Optical Wheel direction: four-way wheel