• Product Overview: The JBL Tune 520BT wireless on-ear headphones feature renowned JBL Pure Bass sound engineered to deliver deep, punchy low-end performance in a lightweight, foldable package. Outfitted with updated Bluetooth 5.3 technology, they stream high-quality audio wirelessly without clutter or signal dropouts. Boasting an impressive battery life of up to 57 hours on a single charge, a quick 5-minute speed charge provides an additional 3 hours of playback time. With the free JBL Headphones app, users can customize their sound using the EQ settings and enable VoiceAware to adjust how much of their own voice they hear during hands-free calls. Designed with soft ear cushions, a padded headband, and a flat-foldable frame, the JBL Tune 520BT delivers durable comfort and effortless everyday portability. • Key Highlight 1: Renowned JBL Pure Bass Sound - Precision-engineered 33mm dynamic drivers deliver the iconic, deep bass signature found in famous venues worldwide. • Key Highlight 2: Up to 57 Hours Battery Life - Extended listening capacity with up to 57 hours of wireless playback and 5-minute speed charging for 3 extra hours. • Key Highlight 3: Bluetooth 5.3 & Multi-Point Connection - Seamlessly stream audio from your smartphone and effortlessly switch to a call on your tablet or laptop. • Key Highlight 4: JBL Headphones App Support - Customize your audio EQ preferences, choose preset EQ modes, and fine-tune your listening experience.