Hign-concerned Chemical:None Operation Mode:Opto-electronic Power Type:RECHARGEABLE Number of Buttons:6 Number of Rollers:1 pcs Hand Orientation:Both Hands Package:Yes Style:DPI adjust button DPI:1600 Interface Type:bluetooth Type:Bluetooth Wireless Brand Name:kebidumei Origin:Mainland China Certification:CE Porduct Name:Mouse / Wireless Mouse / Vertical Mouse / Ergonomic Mouse / Bluetooth Mouse / 2.4G Wireless Mouse / Bluetooth 5.2 Mouse Working hours:About 90 hours Connection Mode:Bluetooth 5.2 & 2.4GHz Wireless Transmission Distance:10M DPI Level:800/1200/1600 DPI Charging port:Type-C charging Number of keys:6-key layout System Switching:Windows & Mac OS Feature 1:Gaming Mouse Feature 2:Wireless Mice Feature 3:Gaming Mice Feature 4:Wireless Mouse Feature 5:Wireless Gamer Mouse