The Ultimate Ears Wonderboom 4 is without doubt the best cheap Bluetooth speaker on this list, combining good sound with an ultraportable design and powerful 360-diploma audio. It can be just a straight-up Bluetooth speaker (so no Wi-Fi) but you can pair two of these together possibly in stereo https://www.bluetoothspeaker.top/bluetooth-speaker-led-screen-outdoor-audio-wireless-loudspeaker-with-dazzling-lights/