Former user of the MW600, I am very disappointed SBH50. The product comes without power supply and mini USB cable, headphones and without notice, you must download. Despite firmware updates recommended by SONY and the SONY software installation on your Android phone (if you want to enjoy all the features of the handset), the SBH50 stops to disconnect and reconnect randomly. Anyway for the moment the device is unusable. I hope a new updated firmware or software in order to use one of these days. This product is not finalized, it's a shame !!!