Enjoy loud music from a small speaker with the JBL Go 4 Black. This way, you can enjoy your favorite music on the go. The JBL Pro Sound provides a powerful sound with a heavy bass. It has a 7-hour battery life, which makes it possible to enjoy your favorite music for an entire afternoon. With the Playtime Boost, you can listen to 2 more hours. This is useful when you don't have a charger, but you want to enjoy listening to music. You can turn this on in the JBL portable app on your phone. The speaker has the IP67 certification, which means that it's dust and water-resistant. This means you can take it with you to the beach or park without problems. You can connect 2 speakers via the Auracast to create a stereo pair, so you can enjoy a more spatial audio.