• high sound quality · up to 8 hours playback time · 2000mah rechargeable battery · IPX7 waterproof Connect+ · durable material · indoor / outdoor sound modes · Input connection :bluetooth · Sound power :2 x 30w · Frequency sensitivity :50hz – 20khz · High frequency drive :2 x 20mm · Low frequency drive :4 inch woofer · Driver sensitivity: >80db · Weight :1kg