-Modo de encendido y apagado. Facts are hard to find in the area of compatibility. A nice trick is that the BT600 USB that this comes with lights a different color when on mute. I like a wired headphone while I’m gardening or walking so I don’t lose my wireless ones, and I didn’t want my old headphones to go to waste. I dont think I need a red, and I have the blue and the black now. This flip flop would have comfortable, I think. Also, the chest straps are too long, and dangle. Let the phone reformat, and halfway through, the phone decided the card is missing again. I considered Sonos Pair:1, Bose SoundTouch 10 and this Sony. "Light the starts.