... batteryWireless and Wired bothDiferent colors selectedSpecifications:Audio Mode: Compatible with MP3,WMA,WAV formatsFrequency range of receiver: 87-108MHZ SNR:>90dBTHD:< ... item is a digital Hi-fi stereo music headphone, compatible with Mp3,WMA,WAV. It is available for SD card or TF ... orders are available! Wireless And Wired Headphone,SD Card Headphone, Mp3 Player Headphone