Updated the 'Also think about' portion with details about the latest solutions we've reviewed, and why they failed to make it into this list. An optional spare battery extends its around 12-hour play time. The IPX4-rated speaker has jacks for any guitar and microphone, so it’s good for karaoke https://www.bluetoothspeaker.top/high-quality-music-colorful-lights-speaker-shower-waterproof-bluetooth-speaker/