The Ultimate Ears Wonderboom 4 is definitely the best cheap Bluetooth speaker on this list, combining good sound with an ultraportable design and effective 360-diploma audio. It is just a straight-up Bluetooth speaker (so no Wi-Fi) but you can pair two of these together both in stereo or dual https://www.bluetoothspeaker.top/hot-selling-hifi-heavy-bass-wireless-speakers-waterproof-portable-outdoor-bt-speaker-with-fm/