1、3 IN 1 SCANNER: The barcode scanner supports Bluetooth, 4G wireless and wired connection, easily connect laptops, PCs, mobile phones, tablets, etc. 2、LONG TRANSMISSION RANGE: The scanner is powerful with Bluetooth transmission distance up to 50 meters and wireless transmission up to 100 meters. 3、IMAGE SCANNING: Bar code scanners can scan 1D and 2D codes displayed on the screen, and can also more easily scan damaged, misaligned and reflected bar codes. 4、OFFLINE UPLOAD: This wireless barcode scanner with memory also offers an offline mode where you can store barcode data and perform batch uploads. 5、GOOD DECODING CAPABILITY: This QR code scanner can read most barcode types, such as PDF417, UPC, EAN, Code39, 93, Code32, Code128, ISBN, etc.