inputs.text: great sound quality many uses - primarily use product send line signal one level house another multiroom audio ive tried bluetooth sound quality lacking latency echo caused signal delay showstopper product performed flawlessly exceeded expectations also found rechargeable batterypowered usb phone charger powers receiver many hours allows use anywhere within range using headphones portable speakers inline volume control range excellent no static interference anywhere within house deck sound quality much better bluetooth whether input signal analog digital whenever dont want use wires im finding works great