I put 3 stars for the benefit of the doubt. I received a model with a parasite vibration problem (sizzling) at frequencies centered on female voice (nothing else!). This may be an isolated case? I sent it back and choose another brand. otherwise the ergonomics are good and proper operation. Still, the device is very small and the mini hp have difficulty expressing themselves in the grave. The sound, however, is okay but not necessarily related to the price of 200.