Muti-Role MP3 Player for Sale

"A portable MP3 music player with a prepaid transportation card hit the market this week. Hyunwon, the maker of MP3 player brand MobiBlue, has begun selling the DAH-1800T model, which can be used to pay fares on public buses and subways. The new player has an embedded radio frequency identification (RFID) chip. Users can charge up to 70,000 won on the MP3 player at ticket windows of subway stations or newsstands as is done with regular prepaid smart cards." Source: times.hankooki.com