Product feature 1)creative foldable design, fashionable and functional 2) RF wireless transmitting audio signal, wireless receiver, the effective distance is 15m 3)electronic all channel searching FM radio ( FM 88M-108M) 4) automatic consumption decrease design, low power consumption, long using time 5)special chip, high receiving sensitivity 6) supporting various audio facilities with audio output jack (e.g. television,computer , DVD, CD, MP3, MP4, language learning reciter etc) ★Mic input: this product also have the computer chatting function( if you need a mic wire, the price will be increased slightly)