As the control buttons are white with a black area, they’re easy to see even in dim light. Connie Park/NYT Wirecutter As of when this customer’s guide is posted, five.four could be the most current Bluetooth version. Just about every iteration of Bluetooth has evolved to include more abilities, https://www.bluetoothspeaker.top/oem-odm-available-bluetooth-speaker-inalambrico-speaker-wireless/