Bluetooth wireless speaker system with built-in rechargeable battery, premium Harman Kardon design. The speaker provides the ultimate sound companion to all your smart Bluetooth devices, furnishing you with room-filling sound through its 4 powered speakers and dual passive radiators that takec care of the deep bass. Amazing audio performance is taken care of by two 3'' woofers, two ¾'' tweeters and 2 passive radiators delivering authentic sound with the frequency response of 60 Hz – 20 kHz. The rechargeable battery offers up to 5 hours play time gives you convenience of playing music. The dimensions of the speaker are 280 x 161 x 260 mm. Colour finish: grey.