Overall disappointed with this bar code reader. It works well in USB yes, but impossible to get away from over 2m from PC to scanner bluetooth. I remain close to scan and it still happens to disconnect between 2 parcels scanner (and yet I have not the time to rest between the 2). After a first defective copy (and thankfully replaced) I will drop it and invest in more robust hardware because 50 is definitely not a budget for a pro thinkable and comfortable use materials. There I too random operation to work in confidence and I earn both time to type my code manually.