Bluetooth speaker with LED lights is compatible with PC, Laptop, MP3/4 Player, TF/MicroSD, USB flash drive and any audio device that is Bluetooth compatible or has a 3.5mm stereo output jack. Bluetooth connectivity to any compatible device ensures good interference-free performance, high data rate, high quality and efficiency. It comes with built-in FM radio to listen to your favorite radio stations. In addition detachable and rechargeable lithium battery is also included. The best and the most unique feature, which makes this item stand apart from its competitors is the built-in microphone. The Microphone will allow you to make and receive hands free calls and listen to the other person loud and clearly through the speaker. If you are playing your music and a call comes in, the music will stop and you will hear your phone ring and will continue playing after the call has ended. KINDLY NOTE - Music player comes in 5 beautiful colours. Random colour will be shipped depending on the stock availability. FM player requires strong area signal frequency to work properly. Connect the mini USB cable while auto-tuning and playing FM as it acts as an antenna.