A SIMPLE KEY FOR BLUETOOTH SPEAKER STEREO AMPLIFIER UNVEILED

The Wonderboom 4 has large plus/minus volume controls over the facet, along with major-panel buttons for power, start/stop, and Bluetooth pairing. Picture: Michael HessionIf you prefer a powerful portable speaker with Wi-Fi and smart-speaker functions (and don’t mind paying a premium): The Brane X is about fifty% extra expensive than the Ultimate