The Ultimate Ears Wonderboom 4 is without doubt the best cheap Bluetooth speaker on this list, combining good sound with an ultraportable design and efficient 360-diploma audio. It can be just a straight-up Bluetooth speaker (so no Wi-Fi) however, you can pair two of them together possibly in stereo https://www.bluetoothspeaker.top/led-cube-speaker-rgb-bluetooth-speaker-with-hands-free/