inputs.text: tthe sound bad cannot use set music playing - buying set intended use three essential communication scenarios rider passenger full duplex communication receiving placing phone calls streaming music rider passenger mp3 device device claiming capable much like communication third rider gps connection excellent battery live etc maximum working range claim impressive devices tried use set nokia e71 blackberry curve ipod sony bluetooth transmitter also tried lenovo laptop result devices tested paring excellent phone calls not perfect expectably ok ends streaming music mp3 device phone horrible really mean sound bad cannot use set music playing not speakers problem actual device problem bluetooth a2dp protocol stack streaming music rider passenger time one player not possible unless phone mp3 player capable paring use a2dp profile two devices time let know find something like not test functions set may doubt get good result also wish could smaller big side plus huge antenna sticking plan buy set think twice sure price looks attractive probably end spending money end buying garbage threw away lucky get refund previous reviewer mentioned \\poor\\ sound quality wish would clear attempt play mp3s probably not recognize song playing bad sound