SPECIFICATION Standard Size: 32 inch Ratio: 16:9 Number of Touch Points: 20 Minimum Touch Object: 2mm Touch Activation Force: No minimum touch pressure required Touch Durability: Unlimited Durability Resolution: 32768*32768 Linearity Deviation: ±1mm Frames per Second: Up to 450 fps Typical Response Time: 3-10ms Light Transmission: 100% without glass Operating Systems: Driver free for Windows7, Windows8, Windows10, Native Linux, Native Android (Compatible with GreenTouch Android Box). Single point under Mac (Does not support Smart TV Android system, Raspberry Pi) Protocols: HID,TUIO,Flash Re-development Provide: free SDK, support C/C++, C#, Java etc. Noise : No Noises Lift Time : 7 -10 years ELECTRICAL Power Supply: Single USB Connection Low Power Consumption: Operating ≤2W, Stand By ≤ 250mW ESD: Contact Discharge 8kV,Air Discharge 15kV,15kV on USB connector pins ENVIRONMENT Operating Temperature: -20°C~70°C Storage Temperature: -40°C~85°C Operating Humidity: 10%~90%RH(Non-condensing) Storage Humidity: 10%~90%RH Certification: FCC,CE,ROHS Warranty: 1 year Note : If there is any other question , please feel free to contact us !