EWA A115 Bluetooth Speaker Built-in 6000mAh Rechargeable Battery Great Sound Speaker - BlueKey Features:Up to 105-hour playtime, up to 10 days standby.Dancing LED light, battery indicator.Built-in 6000mAh Rechargeable Battery.Art craft of speakers, brief, attractive, simply fit to any situation.Passive RadiatorThanks to the down-ward passive radiator, the EWA A115 got 50% more bass, much more than..