Wireless Bluetooth Speaker Compatible with MP3/4 devices, Drive, or any audio device which is Bluetooth compatible or has a 3.5mm jack. You just need to pair you phone or other music player which support Bluetooth with the speaker. After paired, you can enjoy the music with speakers that offer you great sound quality. Moreover, if your device does not have Bluetooth function, you have no need to worry about it. The speaker's "mode allows to connect with any audio device, after connected, the speaker play the music of the connected audio device. It comes with a Built-In FM Radio to listen to your radio stations. Please Note:- Please ensure the aux cable is connected to the speaker to utilize the FM radio function effectively. The aux cable serves as the antenna for FM reception. Without it, the FM radio may experience difficulty in picking up signals. And also disconnect the charging cable when using FM radio. Rechargeable lithium battery with give you 6 Hrs Playing time. The microphone wich allow you to make and receive hands free call and listen to other party loud through the speaker.