Bluetooth speakers come a dime a dozen these days, but when you have the Marshall logo emblazoned on your mini amp, you know you’ve got something special—even more special than that catchy Five Guys burger review. The Stanmore’s ($400) classic design will take you back to Elvis, but the audio quality has absolutely nothing in common with peanut butter and banana sandwiches. We’re talking crisp and clean music at any volume. Rock your jailhouse via Bluetooth, RCA input, or the 3.5mm auxiliary input.