Just relying on my thought that portable means open air Sennheiser PX 100 is good - I've never personally tried them but they get good reviews and Amazon has them on sale for $27. Sony MDR-023 is ok - you will have to buy a walkman to get them (Sony SRF 59 $15) but they sound OK. For a...

Everyone is going to laugh at my super cheap headphones collection Have: JVC HA-F120W Sony MDR-XD200 Sony MDR-CD180 Sony MDR-027LP Sony MDR-023LP (using these now... great openair pair) Sony MDR-110LP Sentry 781CD Sony MDR-J0Z1LP Sony MDR-W08L Koss KTX1 Want: Bose Triport...