dabuplayer, I think you missed my point... A mono headset does not support A2DP. SBC decoding is not trivial, and an optimized headset design does not have the power to decode SBC, and still allow a long battery life. Since they will see the target device does not have A2DP support, phones, PDAs, PCs will probably make the connection to a voice headset like the HS850 via the headset profile. I don't think Millhouse has added headset profile support... It seems specifically targeted to A2DP only.