one of the best product i ever seen in my life in this category i charged it 1 hour using my own usb charger which fills 70 and then started to use first time pairing was taken little bit time and pairing is usual comes fast next time i was listening video songs via bluetooth speaker gives best sound quality with good bass above 1hour which makes me very impressive by long lasting battery even not reduce 1 with volume of around 70 to 80 defenetly i will recommend this to everyone who w