Very satisfied with the device, is really loud, good sound. The only shortcoming is the on the inside of the battery compartment uninsulated wire, I think the negative pole. if you look at cheap batteries buys kanns happen before that is lost, the plastic sheath, if you touch it then uses the battery no longer isolated outside of the battery wire and this causes a short circuit which leads to very intense heat. This goes so far that the plastic starts to melt. ALSO: Always use only fully intact batteries / accumulators, otherwise kommts inevitably destroy the device and NEM hole in the backpack ...;)
