I would rate it, therefore 4. It really does work! For instance, she cannot control sound volume and also, when we connect her to this sound bar to listen to music with Alexa, it doesn’t automatically switch back if I tell Alexa to stop playing music, I’ll have to power on the sound bar again because it seems that when working in Bluetooth, the sound bar shuts down as soon as you tell Alexa to stop and it doesn’t revert back from the Bluetooth mode so you have to turn the sound bar on again to continue watching tv. I got the wide for winter, to wear with socks and the narrow for summer to accommodate no socks. The best way to tell the difference is the collar. I wouldnt buy another. Rear in middle of slotted holes. Battery life is limited but I can live with that. Thanks Amazon. The low end frequency response is much more full and far less "airy".