inputs.text: works surprisingly well - five starsbut figured operate works well great value 756 free shipping going buy two three case doas bought one totally operational know following 1 not use usb mehemory stick audio excessive noise sd card virtually free noise adjust channels device rehemote minimize residual noise 2 hold playpause button unit select replay options single random folder available 3 unit display window facing install sd cart contacts facing carefully wiggle card card nearly fully inserted bottoms press card spring loaded latch engages card locked rehemove card press card spring load feel unlatch move slightly outward unlocked rehemoved 4 several folders stored sd card use ch set button rehemote advance folders advance opposite direction press pick song button rehemote buttons clearly mislabeled absolutely necessary navigate folders 5 naming folders maximum 8 characters appear display caps spaces deleted 6 naming files 16 characters available without scrolling upper lower case displayed well spaces however 4 space used \\mp3\\ added end file name leaves 12 character title without scrolling not check max number characters scrolling 7 line input works acceptably furnished cable volume cracked background noise apparent unit paused fidelity similar fm radio not concerned fidelity since mostly use audio books 8 range transmitter surprising following another car transmitting signal car loud clear 100 200 feet think unit would work well transmitting fm radios throughout house