Hello, I am the owner of a product SENA (the SC1 Advanced for Schuberth). I discovered, after purchase, that products SENA offering the RADIO did not allow to have the vocal instructions of the telephone by Bluetooth resulting from GPS application or other. So, if the radio of the intercom is swithed on, you cannot have of road guide, informations of safety or informations resulting from your telephone by this way. The instructions are completely inaudible. Thus SENA prioritized the radio with regard to the information of safety for the motorcyclist. In 100 additional euros to have this radio feature, I do not especially recommend you this product. You cannot use it when you would want to use the GPS guide from your smartphone. You can note that others brands like N COM for example of whom I was the owner provide you perfectly a prioritization of the instructions from the telephone compared with the RADIO. The Radio cuts itself when the GPS application from your telephone guides you. I asked SENA to plan an evolution and shall hold you informed if it was the case. In the meantime, if buy you SENA, make it with full knowledge of the facts ! Do you think is it normal SENA had prioritized Radio over Security informations ?