Bluetooth belters at around $seventy nine / £seventy nine. It is not winning any awards for design, but it's IP67 h2o- and dustproof and it has a loud, likeable, bass-heavy sound that'll work for many a summer months collecting �?at home or within the road. An optional spare battery https://www.bluetoothspeaker.top/waterproof-speaker-outdoor-subwoofer-bass-wireless-bluetooth-speakers/