CQM Nia-8820 Fm Tf Card Stereo Sports Wireless Earphone Gaming Headphone for Mp3 Player and Fm Radio (Orange) 10 Hours of Continuous Playback time Support MP3 / WMA audio formats double decoding broadcast, FM stereo FM radio, support computer wired headset Sound mode switch,Do not contain Bluetooth function FM& TF Card Stereo Sports Wireless Earphone Gaming Headphone Support a variety of sound