iCozzier Portable Rechargeable Bluetooth Speaker 6W With a Microphone & Stereo Audio Jack, Support Micro SD card player and FM function For phone / tablet PC / Laptop - Titanium Black Experience your tunes in high definition and surprising fullness through a 6W driver and bass port - outclassing other similar-sized portable speakers. Stereo design, AUX port output to the same paragraph speaker, immediately turns into a stereo speakers, and have a good surround sound effect. Steel materials, S-bass deep bass technology, the 6 w sound more impressive, clear speakerphone effect. (Speaker phone must be within 20cm) Built-in rechargeable lithium battery provides 10 hours of playback time, wireless transmission range: 8 - 10 m (No obstacle) Support Micro SD card (TF card) and FM radio (Plug in the included USB charging cable to receive FM signals)