Sony SRSBTV5 Portable NFC Bluetooth Wireless Speaker System (Blue) Compact - 65mm wide and 135g. Can be carried to anywhere. Bluetooth 3.0 - hands-free talk and music play. Quick Bluetooth paring/connect/disconnect/switch with NFC/FeliCa smartphones 360 degree sound from a small speaker. 5-hour continuous playable battery. Audio-In socket available.