3.5mm FM radio antenna interface to replace the traditional headphone cable when the antenna 100% New and High Quality 3.5mm male interface FM radio antenna. 3.5mm male interface FM radio antenna, suitable for most card speakers/mobile phones with FM radio function, etc. Most mobile phones and speakers recognize the product as a headset. Once plugged in, the sound will be output to the headset by default. You need to switch the phone or card speaker to the outside. Otherwise, you can't hear the sound. Plug and play to make your device receive more signal Compatible with: Bose Wave Music System,Acoustic Wave Music System,Wave Radio II Stereo Receiver,Built-in FM Radio Bluetooth Speaker,Built-in FM Radio Mobile Cell Phone Package Include: 1 x Antenna