Here is a smart speaker that combines with your Amazon Echo dot to better serve you. The VAUX Surround Echo Dot Home Speaker features dual 52mm drivers and a passive radiator for rich sound. Simply put your Dot onto the top of the device, plug in the connectors, and you are set. The built-in battery lets you take your Dot anywhere.
The battery life lasts up to 6 hours. The device has 3.5mm Aux input to work with other music players.