Long Transmisson Range The transmission distance in the obstacles environment is about 60m / 196ft. The tansmission in the environment without any obstacles can reach up to 100m / 328ft. 2 Connections MJ2840 Support 2 Connection Mode 2.4GHz Wireless Connection: Connect the scanner to your device via the USB adapter. Wired Connection: Connect the scanner to your device via the USB cable. In wired mode, user can scan barcode while charging. 2 Upload Modes 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 bulit-in memory of the scanner. You can upload the data to your device in batch. Internal offline storage supports up to 100,000 barcodes. Compatible Operating System Compatible with Windows, Mac OS,Linux, Android, IOS, Google. Note：Incompatible with Square POS，Amazon fire. 3 Trigger Modes 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. CMOS Imaging Scanning With CMOS sensor , The scanner are using imaging technique for identifying the barcode scanners from the surface, which can either be a printing or a screen. Add Custom Prefixes/ Suffixes *Add custom prefixes/ suffixes, delete characters. * Duplicate barcode detection. * Case conversion setting. * End character setting. * Enable or disable the barcode type as you want. * Turn on/off the beep, change the capital/lower case, etc. Compatible Barcode Types Can read most 1d barcode from Screen and Printing! EAN13、EAN8、UPC-A、UPC-E0、UPC-E1、Code128、Code39、Code93、CodaBar、Interleaved 2 of 5、Industrial 2 of 5、Matrix 2 of 5、Code11、 MSI-Plessey、Standard 2 of 5、Plessey、China Post、GS1 Databar(RSS-Expand, RSS-Limited, RSS-14) Can't read any type 2D barcode，like QR code，PDF417，etc. Supports Multiple Languages Supports multiple languages including English, Spanish, German, French, Italian, Japanese, etc. To get the correct output, make the scanner's keyboard language consistent with your computer's keyboard language. The scanner's factory default language is English. 2000 mAh Large Capacity UNIDEEPLY MJ2840 use a 2000mAh rechargeable battery, the scanner has about a 18 hours of continuous scanning. It can work about two weeks in daily used after full charge. It takes about 6 hours to full charge the scanner, standby time can be over 1 year. MJ2809 MJ2290 MJ3650 MJ2840 MJ3660 MJ3670 Add to Cart Add to Cart Add to Cart Add to Cart Buying Options Buying Options Customer Reviews 4.2 out of 5 stars 329 3.8 out of 5 stars 70 4.1 out of 5 stars 48 3.6 out of 5 stars 68 4.2 out of 5 stars 77 3.6 out of 5 stars 8 Price $20.99$20.99 $19.99$19.99 $33.99$33.99 $24.99$24.99 — no data — no data Supported Barcode Type 1D 1D & 2D 1D & 2D 1D 1D 1D Connections USB Wired USB Wired 2.4Ghz Wireless/USB Wired 2.4Ghz Wireless/USB Wired 433Mhz Wireless/USB Wired 2.4GHz wireless/Bluetooth wireless/USB wired Screen Scan X ✓ ✓ ✓ ✓ X Auto Sensing Scanning X ✓ ✓ ✓ ✓ X Device Supported Computer/POS Computer/POS Computer/POS Computer/POS Computer/POS Computer, Smartphone,Tablet Scanning Technology Laser CMOS CCD Imaging CCD Imaging CMOS Laser Battery Capacity No Battery No Battery 2000 mAh 2000 mAh 2000 mAh 360 mAh