Feel the bass resonate deep in the chest and enjoy the best sound quality with Ninja Dragon Z10 Color Changing Bluetooth Headphones. Featuring a 40mm large unit and composite diaphragm, you'll hear clear and transparent bass, mids, and treble, fully exposed to all the details of every song. It has Bluetooth 5.0, allowing you to enjoy up to 10 hours of music playback, 2.5 hours of talk time, and up to 20 days standby time on a single charge. It has a built-in TF slot that a 32GB TF card. The LED breathing light can switch automatically in 7 colors. Its built-in 3.5mm auto jack cable provides an alternative wired connection for devices without Bluetooth.