1,The barcode scanner supports wired or BT or 2.4G wireless connection, convenient to use. 2,Adopt COMS image sensor, support multiple one dimensional or QR code scanning. 3,Small and lightweight, wear on the finger, does not affect other hand work. 4,The scanning head can rotate 270° freely, reducing the limitation of scanning and easily dealing with different scanning scenarios. 5,ABS shell, shockproof and anti fall, long service life. Specification: Material: ABS Connection type: Wiredand2.4GandBT4.0 Image sensor: 640x480 CMOS, 120FPS Supported barcode type: One dimensional barcode or QR Identify angle: Intersection angle 30°, elevation angle ±60°, declination angle ±60° Communication interface: TTL-232, USB(virtual serial port), 2.4G wireless, BT Shockproof level: IP42 Working voltage: DC5V±5 percent Working current: 200mA Battery capacity: 330mAh Item size: 5 x 5 x 3cm or 1.97 x 1.97 x 1.18in 1 x Scanner 1 x USB receiver 1 x Data cable 1 x User manual Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.