Bifrost Portable Ring Barcode Scanner Mini Bluetooth Scanner 1D Barcode Reader Battery Capacity 360mA BS-6340[Black]

These unit cannot scan a simple barcode. The mirrors and lenses are not aligned and you have to hold the unit at a 30 degree angle to the bar code and then it will scan 25% of the time. Very poor design. I wish I could get my money back. I will never buy these units again!!!!! these units do not deserve a single star rating!!!

Perfec. Is very fast

product ok