This barcode scanner is built-in CMOS sensor, if you need to read 1D/2D/QR/PDF417 barcodes off a screen, such as a computer monitor, smartphone or tablet, or scan through glass surfaces, plastic shrink wrap, a CMOS scanner is likely the way to go. • • Bluetooth Connection: Connect the scanner to your device via Bluetooth technology. The transmission distance in the obstacles environment is about 10m / 33ft. The transmission in the environment without any obstacles can reach up to 50m / 164ft. • 2.4GHz Wireless Connection: Connect the scanner to your device via the USB adapter. The transmission distance in the obstacles environment is about 30m / 99ft. The transmission in the environment without any obstacles can reach up to 100m / 328ft. • Wired Connection: Connect the scanner to your device via the USB cable. In wired mode, users can scan barcodes while charging. • Instant Upload Mode: Read barcodes & upload barcode straight to the file you have opened • Storage Mode: All scanned barcode will be stored directly into the built-in memory of the scanner. You can upload the data to your device in batch. Internal offline storage supports up to 2,000 barcodes. • Compatible Operating System: Compatible with Windows, Mac OS, Linux, Android, IOS. • Key Trigger Mode: Scanning light is only on when press the trigger. • Continuous Scan Mode: Scanning light is always on when the scanner is electrified. Scanning barcode without pressing any button. • Auto-induction mode: Scanning light is off until a barcode presented in front of the scanner. Once the barcode is detected, the scanning light will turn on automatically to read the barcode • 1D Barcodes: UPC, EAN, Code128, Code39, Code93, Code11, Interleaved 2 of 5, Matrix 2 of 5, Industrial 2 of 5, Standard 2 of 5?MSI, GS1, Codabar • 2D Barcodes: PDF417, MicroPDF417, Data Matrix, Maxicode, QR Code, Aztec, Hanxin etc. • 1200mAh Battery: C740 Use a 1200mAh rechargeable battery, the scanner has a 20 hours of continuous scanning. It can work about two weeks in daily used after full charge. It takes 3 to 4 hours to full charge the scanner.