Sensitive and accurately captures 1D and 2D barcodes on labels, paper, and mobile phone or computer screens. Simply plug into a standard USB port to start scanning—no drivers required and no battery needed. Automatically reads code information within the effective reading range. Adjustable head design for comfortable use based on height and user preference. After turning on the scanner, it automatically detects barcodes when they are within range. A solid blue light indicates successful scanning. Specifications: Model: T97 Type: Optical imaging 1D code: Supported 2D code: Supported Phone screen: Supported Computer screen: Supported Transmission type: Wired Interface type: USB Cable length: 1.5m Sensor: CMOS sensor, 640*480 pixels, 120fps Working voltage: 3V DC ±5% Working current: 390mA (Max), 220mA (Typical) Compatibility: Android, Switch Scan speed: Up to 180cm/sec Supported 1D codes: Code 39, Code 32, Code 128, JAN, Code 93, Interleaved 2 of 5, Codabar, 2 of 5, Industrial 2 of 5, etc. Supported 2D codes: QR Code, Data Matrix, PDF417, etc. Optimal 1D support: China Post (2 of 5), 2 of 5, Code 11, Plessey, GS1 Databar (RSS), Korea Post, Trioptic Code39, GS1 Composite Code, Telepen Optimal 2D support: Micro-PDF417, Code, Codablock, MaxiCode Material: Plastic Color: White Package Contents: 1 x Barcode Scanner 1 x Data Cable Note: Light reflection and differences in display screens may cause slight variations in the color of the item as shown. Measurement error is +/- 1-3cm.