Usage Tips:Sensitive and accurately capture bar codes 1D, 2D on labels, paper, and mobile phone or computer. Just plug into a standard USB port and start your scan, no drivers required, no need for battery. Automatically read code information within the valid reading scale. Adjust the head according to height and use habit. After turning on the scanner and when the barcode approaches, the scanner will auto recognize the barcode. When the blue light is on, scanning is successful. Specification: Model: T97 Type: Optical imaging 1D code: Support 2D code: Support Phone screen: Support Computer screen: Support Transmission type: Wired transmission Interface type: USB Cable length: 1.5m Sensor: CMOS sensor, pixel: 640*480, 120fps Working voltage: 3V DC5% Working current: 390mA(Max),220mA(Typical) OS: Android/switch/ Scan speed: Max 180cm/sec Basic code system: 1D: Code 39, Code 32, Code 128, //JAN, Code 93, Interleaved 2 of 5, Codabar, 2 of 5, Industrial 2 of 5,etc. 2D: QR Code, Data , PDF417,etc. Optimal code system: 1D: China Post( 2 of 5), 2 of 5, Code 11, Plessey, GS1 Databar(RSS), Korea Post, Trioptic code39, GS1 Composite Code, Telepen 2D: Micro-PDF417, Code, Codablock, MaxiCode, Chinese Sensible Code Material: plastic colour: White Package Contents: 1 x Barcode scanner 1 x Data cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.