Built-in high sensitivity FM radio module; With hand-free phone call answer function, can be used for many people conference call; It is more convenient for wireless chat owing to built-in microphone; Support TF card; High-tech bluetooth technology, 10 m wireless connection; Support NFC fast matching connection; The built-in 2000mAh rechargeable battery enables a breakthrough 6-8 hours of playtime so you can jam through a full day and it only takes 4~5 hours for you full charge the speaker; 3.5 mm audio input interface.