The JBL Charge 4 is a portable Bluetooth speaker with powerful sound and rugged durability. It features a single proprietary driver and dual passive radiators that deliver strong, deep bass with clear highs. The speaker is wrapped in durable waterproof fabric with IPX7 certification, allowing it to be submerged up to 30 minutes in a meter of water and it even floats temporarily if dropped.

The Charge 4 provides up to 20 hours of playtime on a single charge thanks to its high-capacity 7500mAh rechargeable battery. It doubles as a portable power bank with a USB-A output port to charge your smartphones and other devices on the go. The speaker charges via USB-C for convenience. Playback controls are located on top with raised buttons for play/pause, volume, and track skipping, plus dedicated power and Bluetooth pairing buttons.

Connectivity includes Bluetooth 4.2 for wireless streaming from up to 30 feet away, with the ability to wirelessly connect up to 2 smartphones or tablets simultaneously. The JBL Connect+ feature allows you to link up to 100 JBL Connect+ compatible speakers together for synchronized playback. Additional inputs include a 3.5mm auxiliary port for wired connections. Dimensions are 22 x 9.5 x 9.3 cm and it weighs 965 grams, making it highly portable for outdoor adventures, beach trips, or poolside listening.