Powerful 2D Code Decoding Capability: This scanner supports screen scanning, which can easily capture one-dimensional and two-dimensional codes on labels, papers, mobile phones or computer screens. It is sensitive and accurate, and can easily identify even distorted, damaged, blurred and colored barcodes. Wireless 2.4G Bluetooth: Adopts 2.4GHz wireless transmission technology, supports reliable transmission, and has a maximum wireless distance of 100m. It supports Bluetooth mode and wired mode, and can switch to the required mode as needed. Strong compatibility: compatible with for IOS, for OS, , Linux, Unix, Android and other systems and software, suitable for desktop and laptop computers, no need to install drivers, plug and play. Large capacity battery: built-in 1100mAh large capacity lithium battery, can scan continuously for 12 hours, standby time equal 90 days (after sleep). High-performance MCU: using advanced CMOS image recognition technology, intelligent image recognition system. Easily read barcodes on paper, screen and other media. Name:2D Barcode Scanner Model:BX20 Interface Type: USB Interface Resolution: 640*480 Decoding Density: equal 4mil Scanning Rate: 25CM/S Transmission Distance: 100m Battery Capacity: 1100mAh Continuous Scanning: 12 Hours Standby Time: 90 Days Size: 91x40x24mm Color:Black Material:plastic Package Contents: 1 * Barcode Scanner 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.