The JBL Pulse 4 Portable Bluetooth Speaker in black is a powerful and versatile portable speaker system. With a sleek design and a durable water-resistant construction, this speaker is perfect for on-the-go use. It offers wireless Bluetooth connectivity and a long-lasting 7200 mAh battery capacity, making it convenient and easy to use anywhere. The RMS power of 20 W ensures high-quality audio output, while the USB-C audio input allows for easy connection to a variety of devices. The JBL Pulse 4 is compatible with a universal range of devices, making it a great choice for music lovers on the move.