Features 1. Headphone function: adjust the volume, switch songs, voice calls, Bluetooth play, support card, FM. 2. Colorful color: use RGB three-color light, balanced light color, let you look very cute. You can also turn off the lights by long pressing the call button to save power. 3.HIFI sound quality: 40mm large diameter and vocal unit, the performance has greatly improved, shocking three-dimensional sound, real-scene experience. 4. Ten hours of battery life: large-capacity lithium battery, meet the needs of museum games, and don't be afraid of power outages. 5. The Bluetooth 5.0 chip is stable without delay, the transmission distance is farther, the sound quality resolution is higher, and the production is more powerful. 6. Folding receoned: Active pull strip can be adjusted and more convenient to fold it. 7. The head beam is made of soft silicone and does not clamp your hair. With a skin-friendly high-protein skin, it is bonded to the ear, and it is not painful for a long time. 8. Active noise reduction