PRTBL BT TW SPKR REDWireless, portable Bluetooth(R) speakerAbility to seamlessly stream and share music anywhereSpeakerphone allows user to take calls from speaker with touch of a buttonUSB and microSD(TM) Card inputsTrue Wireless Stereo allows user to connect 2 like speakers via Blutooth(R) (second speaker sold separately)3.5 mm auxiliary inputFM radio