It charges conveniently through a USB-C connection, guaranteeing that you can certainly recharge it even on the go. The JBL Portable application provides a 3-band EQ to customize the sound profile if desired and when you have two Flip 7 speakers, you can operate them for a stereo pair. https://www.bluetoothspeaker.top/hot-sale-competitive-price-waterproof-outdoor-portable-wireless-bluetooth-speaker/