Ultimate ears ue boom black
Bluetooth speaker portable speaker series logitech ultimate ears principle active frequency response 90 20000 hz noise level 88 db impedance 4 ohm amplifier type digital power supply rechargeable battery battery life 15 h charge time 34 hrs type of battery lithium ion charging port micro usb colour black housing surface rubber functions speakerphone function bluetooth multipoint nfc protective properties humidity resistant dust resistant spla