Very good seller (!) But bad product

The device aborted the charge cycle and uses the then incomplete charged battery up to 40 minutes.
We could not find in our household 10 different USB chargers, but none that could load this Bluetooth receiver. On most chargers, the charging circuit of the receiver did not jump once. The strong Samsung power supplies the charging cycle has been started, but stopped after a short time. A new charging attempt then failed.

A replacement was exactly the same behavior.

Exchange delivery and refund the purchase price were exemplary handled by the supplier.

Even if the charge would have worked, the device would have another major drawback: It can not be charged during operation, since each PSU growling on the output breaks through. That's when other receivers that we use in our budget, not as though they were only slightly more expensive.