The Tune 510BT Wireless On-Ear Headphones from JBL are packed with features to give you a complete portable audio experience without the need to interact with your mobile devices. Bluetooth technology lets you stream your favorite music, podcasts, and more through 32mm dynamic drivers. When paired with your smartphone, you can use integrated controls and built-in microphone to take hands-free calls. To give voice commands to Siri or Google Assistant through the mic, simply press the multi-function button to activate them. The Tune 510BT headphones can even automatically switch between devices thanks to multi-point support. Long Battery Life and Quick Charging On a full charge, the Tune 510BT headphones can last for up to 40 hours for multi-day audio entertainment. A full charge only takes 2 hours, but if you're in a rush, a quick 5-minute charge can provide up to 2 hours of playback. Multi-Point Connection With multi-point support, these headphones can pair with two different devices at the same time. This gives you the ability to quickly switch between them when needed. For example, listen to a movie on a tablet, but then automatically switch over to your smartphone to answer a call. Comfortable and Portable With such a long battery life, JBL has ensured the Tune 510BT headphones will be comfortable during long listening sessions by using lightweight materials, a padded headband, and soft ear cushions. The headphones can also be folded, letting you more easily take them with you while traveling or commuting to work.