If you'd like a more multipurpose ultra-portable travel speaker: The Ultimate Ears Miniroll is a lot more expensive and a little larger than the JBL Go 4, but it sounds a bit fuller and it's a handy integral strap that lets you strap it to the pole or chair https://www.bluetoothspeaker.top/bluetooth-speakers-colorful-sound-with-rgb-light-stereo-speaker-wireless-speaker-with-led-light/