SEGGO NOTE: No AUX option. Loudness: 95dB. Please charge for 20mins before first use. Bluetooth Light speaker is compatible with PC, Laptop, MP3/4 Player, TF/MicroSD, USB flash drive and any audio device that is Bluetooth compatible. Backed by a lithium battery, you can now enjoy long hours of music without looking for a plugging station. Now enjoy your favourite radio stations with the built-in FM radio(Please connect USB cable to the speaker which acts like an antenna for Radio).