The Ultimate Ears Wonderboom four is without doubt the best cheap Bluetooth speaker on this list, combining good sound with an ultraportable design and efficient 360-degree audio. It is really just a straight-up Bluetooth speaker (so no Wi-Fi) however you can pair two of these together either in stereo https://www.bluetoothspeaker.top/bluetooth-speaker-hifi-heavy-bass-wireless-soundbar-subwoof-loudspeaker/