... , AVRCP, OPP, DUN, SPP profiles 2.Class 2 3.UART&USB MDCS56 Class 2 Bluetooth Audio Module CSR ChipsetIt is a improved model ... in audio signal control base on MDCS51 bluetooth audio ... (such as iPod, iPhone and iPad devices) can connect with audio accessories (such as Handsfree, Handset, ect.) freely. However, ...