Main Features‎:‎‎- 0.5m / s response time to ensure lightning‎-fast response‎- DPI speed‎:‎ Ultra‎-precision adjustment‎-free drive‎,‎ with 800 / 1200 / 1600 DPI adjustment third gear‎,‎ can be freely adjusted according to different usage‎,‎ the maximum 1600DPI‎- Compatible with ergonomic design‎,‎ comfort for gripping‎,‎ reduce fatigue‎- Powered by two AAA batteries intelligent power‎-saving‎,‎ energy saving anywhere on the web ‎(‎ batteries are not included ‎)‎ Brand‎:‎ ESTONE DPI‎:‎ 800 Application‎:‎ Desktop‎,‎Laptop Color‎:‎ Black‎,‎Red DPI‎:‎ 1200‎,‎1600‎,‎800 Interface Type‎:‎ USB Power Type‎:‎ Battery Tracking Method‎:‎ Optical Type‎:‎ 2.4GHz Wireless Wi‎-Fi Range‎:‎ 10m Wireless Technology‎:‎ 2.4GHz Package weight‎:‎ 0.134 kg Product Size‎(‎L x W x H‎)‎‎:‎ 11.50 x 7.00 x 3.00 cm / 4.53 x 2.76 x 1.18 inches Package Size‎(‎L x W x H‎)‎‎:‎ 15.00 x 10.50 x 5.00 cm / 5.91 x 4.13 x 1.97 inches Package Contents‎:‎ 1 x ESTONE E ‎- 1700 LED Optical Gaming Mouse‎,‎ 1 x 2.4G Receiver