JBL Go 4 in Black - Portable Bluetooth Speaker Box Pro Sound, Deep Bass and Playtime Boost Function - Waterproof and Dustproof - 7 Hours Runtime

JBL Portable Speakers JBL Portable app Use the JBL Portable app to receive updates, get product support, and unlock features, all straight from your phone. Fine-tune your sound with multiple EQ presets options. Or use the fully customisable equaliser to adjust highs, mids, and lows—so your music is just right for you. Battery Life Make sure to fully charge your JBL speaker at least every 3 months to ensure the best possible battery life span, allowing you to enjoy fully enjoy your speaker. Note: Battery life depends on the use and settings. The quantity of power cords and the plug type differs between regions. Enjoy every beat Stream your favourite tunes seamlessly wherever you are with fast connectivity and crystal clear sound, using the JBL ONE App or any of the supported music.