SUPPORTS Bluetooth 4.0 - supports A2DP, AVRCP, HFP; HANDSFREE SPEAKERPHONE FOR BLUETOOTH(R) ENABLED PHONE ; STREAMS MUSIC FROM CELL PHONE & ANSWERS CALLS HANDSFREE ON THE SPEAKER BY ONE TOUCH; WATER RESISTANT MYLAR SPEAKER; DIGITAL VOLUME CONTROL; BUILT-IN SPEAKER AND MICROPHONE; S-HOOK--HANGS FROM SHOWER HEAD OF CURTAIN ROD; BUILT-IN RECHARGEABLE LITHIUM BATTERY WITH USB CHARGER CABLE