Yamaha RH-5Ma monitor headphones. Around $50 US. Semi-closed cup design, so you can ride your bicycle. Weight 5.8oz Sensitivity 98dB/mW Frequency Response 20Hz-20kHz Works for me. Stephen. _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user