The JBL Pulse 4 is a portable Bluetooth speaker that stands out for its combination of vibrant LED light show, powerful sound performance, and water-resistant design. One of the standout features of the Pulse 4 is its 360-degree LED light display that wraps around the entire speaker. The customizable light show offers a visually stunning experience, pulsating and syncing to the rhythm of your music. You can choose from a variety of pre-programmed light patterns or customize your own using the JBL Connect app. Despite its compact size, the Pulse 4 delivers impressive sound performance with JBL's signature sound quality. It features dual passive radiators and a high-excursion driver that produce rich bass, clear mids, and crisp highs. The speaker's design also optimizes sound dispersion for a wider listening area. Equipped with Bluetooth technology, the Pulse 4 allows you to wirelessly stream audio from compatible devices such as smartphones, tablets, and laptops. It offers seamless connectivity with a range of up to 33 feet (10 meters), allowing you to enjoy your favorite music without the hassle of cables. The Pulse 4 supports JBL PartyBoost, which allows you to wirelessly connect multiple JBL PartyBoost-compatible speakers together for a synchronized audio experience. You can link multiple Pulse 4 speakers or other JBL PartyBoost speakers to amplify the sound and create a party atmosphere. The speaker is rated IPX7 for water resistance, making it suitable for use near water or in wet environments. It can withstand immersion in water up to 1 meter deep for 30 minutes, allowing you to use it by the pool, at the beach, or in the shower without worry. The Pulse 4 is powered by a rechargeable lithium-ion battery that provides up to 12 hours of continuous playback on a single charge. The battery life may vary depending on usage and light show settings, but it's designed to keep the music and lights going for extended periods. The speaker is compatible with the JBL Connect app, which allows you to customize the LED light show, adjust EQ settings, and access additional features. You can control the light patterns, brightness, and color effects directly from your smartphone or tablet. The Pulse 4 features intuitive onboard controls for easy operation. This includes buttons for adjusting volume, changing tracks, activating Bluetooth pairing mode, and controlling the light show directly from the speaker itself. The controls are easy to use, even when you're on the move. The Pulse 4 boasts a sleek and modern design with a durable fabric grille and an integrated carrying handle. Its compact size and lightweight construction make it easy to take with you wherever you go, whether you're indoors or outdoors. The speaker may offer integration with voice assistants such as Siri and Google Assistant, allowing you to control music playback, check the weather, set reminders, and more using simple voice commands.