Trohestar Wireless Finger Scanner 2D Portable QR Code Ring Barcode Scanner Wearable Mini Bar Code Reader Bluetooth-compatible Scanners1. The Design of Ring:Our product use the design of adjustable ring which make your hand fits perfectly with the scanners,And it can rotate 270,Make your work handy,Improve the work efficiency.Help you save a lot of work time. 2. USB Wired & Wireless Bluetooth-compatible:Two connection modes,you can transfer your 1D 2D barcodes to your computer directly by USB or you can use the Bluetooth-compatible mode,Which can make you working more Convenient.The transmission distance of the wireless blluetooth is Max 50m/128ft,depend on obstacles and signal interference.3. 16M Memory Storage:Due to the 16M Memory Storage fuction,Once if the scanner is too far from the host/receiver or working in environment with obstacles,You can still work with our barcode scanner,The scanner can store up to 130,000 barcodes Max.The barcodes only transmitted to the host/receiver when you want to.Compatible Systerm & Powerful Decoding Ability:The barcode scanner work with PC,POS machine,tablet or mobile 4. phone.Compatible with Win 7/8/10,IOS,Android,Linux,Mac OS,Can reads UPC-A,UPC-E,EAN-13,ISSN,ISBN,Code 128,Code 39,Code 39 Full ASCII,Code 93,Code 11,Interleaved 2 of 5,Industrial 2 of 5,Standard 2 of 5,Codabar,MSI, Post,etc.Linear CCD Sensor,Can scan 1D Code on screen.5. Large Capacity Battery:Built-in 360mAh recharge battery,Once charged fully,the barcode scanner can continuously scanning 6 hours,easier charged fully with the USB cable.If you have any problems about our product,please kindly contact us.Note: There are two choices: 1D: only can read 1D barcode2D: can read 1d barcode and 2D QR barcode.About us