DescriptionThis is a multi-fuctionalreceiver. With 3.5mm and USB stereo output, it can be connected to a variety of electronic devices like computer, mobile, speaker, car audio system, etc. With sound transmission, it can be used for both music playing and answer calls. The mini and portable design makes it convenient for you to take it anywhere you want.Features- Color: Black- Material: Plastic- Size: 6.5x2.6x1.1cm-version: V4.2- Frequency: FM 87.5-108- Music format: MP3 / WAV / FLAC / APE- Make your traditional speakers support .- A solution for with nostreaming capabilities.- Connect via FM or USB and AUX, play music in TF card, answer and up calls with one button.- Compatible with most smartphones andenable electronics. for home or vehicle system.- With mini size and portable design, the wireless headset is convenient for you to take anywhere you want.