Sony srs btv5 black srsbtv5b
Bluetooth speaker portable speaker power rating 13 watt effective output 1 watt system 1 way system speaker system 10 mono principle active amplifier type digital power supply rechargeable battery battery life 4 h type of battery lithium ion charging port micro usb colour black front colour black housing material plastic enclosure functions streaming speakerphone function nfc sound function 360 sound led display onoff control feature blue