product brand: AJAZZ Item model number: I380pro Wireless 2.4G+Wired Image sensor: PMW3325 Package size: 125 X 63 X 40.5 Product weight: 90 g Number of keys: 6 Return rate: 1000Hz Acceleration: 20GDPI adjustment: 200-10000 Battery: 600mAh Switch: Huanyu 30 million times System Requirements: Windows 7/8/10/11 & / Mac