The JBL Tune 520BT Wireless On-Ear Headphones are designed to improve your music with the famous JBL Pure Bass Sound. These headphones are both fashionable and useful. They have a lightweight, foldable design that gives comfort and portability. You can use them even during long listening sessions. They have smooth multi-point connections. They use Bluetooth 5.3 which makes switching between devices easy. The earbuds have an amazing 57-hour battery life. You can enjoy extended wireless use and the ease of hands-free calls. This ease is made possible by Voice Aware Technology. Also, with just five minutes of charging time, the quick charge feature offers three hours of playback. Powerful and clear hearing is ensured by the headphone's dynamic frequency response range of 20 Hz to 20 kHz and 33mm driver design. Performance and comfort are combined perfectly in these headphones, which have an impedance of 30 Ω and weigh only 157 grams. The JBL sync 520BT is the ideal daily companion, keeping you linked and in line with your preferred music whether you're using it for business or playtime.