This is a handcrafted Mahogany speaker by Princeton Audio. Each of these speakers is unique to themselves. They all are beautifully designed and can be custom built to order. They each offer HD Bluetooth connectivity and also standard auxiliary connection. The chassis of this speaker is solid mahogany, but others include maple, black walnut, and cherry wood. There are two battery options available to choose from for these speakers, with one being 15 hours, and another an outstanding 40 hours of battery life. These speakers truly are one of a kind.