Like the main-gen model, the battery is replaceable and may be accessed by using hidden screws on the bottom of your speaker. This means you may store music information directly on your speaker without needing to connect to another device. Plus, it’s now available on Amazon for easy online https://www.bluetoothspeaker.top/rgb-light-sound-card-stage-bluetooth-speaker-home-ktv-party-karaoke-speaker/