The Sonos Just one is probably the most recent first party smart speakers available on the market today. It's the second generation of first party speakers that had been released by Sonos in early 2017. MP3 player - Basically store your favourite music as an MP3 over a memory https://www.bluetoothspeaker.top/multifunctional-charging-wireless-bluetooth-speaker-rgb-portable-5-0-speaker/