The Ultimate Ears Wonderboom four is definitely the best cheap Bluetooth speaker on this list, combining good sound with an ultraportable design and efficient 360-diploma audio. It is just a straight-up Bluetooth speaker (so no Wi-Fi) but you can pair two of these together possibly in stereo or dual https://www.bluetoothspeaker.top/music-player-wireless-bluetooth-speaker-subwoofer-outdoor-plug-in-tws-portable-speaker/