Listen to great music with this compact bluetooth speaker.* Compact Sized for Convenient Portability * Top Panel Control Keys * Bluetooth A2DP Profile for Universal Audio Streaming * Bluetooth HFS Profile for Hands Free Phone System * Power On-Off & Bluetooth Pairing LED Indicator * Passive Subwoofer for Extra High Bass Response * AUX-In External Audio Input Jack * Built in Lithium Rechargeable Battery (User Replaceable) * Full Charge Protection Circuit