Feature: 1. technology brings a more stable and faster wireless connection to your device, allowing you to enjoy stable calls and wonderful music. 2. It adopts a soft, flexible and safe fit ear hook design, 180 degree + 360 degree rotation, and the left and right ear angles can be adjusted arbitrarily to ensure unparalleled comfort and stability when moving. 6. Unbreakable Hi-Fi sound: Wireless headphones provide powerful, balanced stereo and dynamic range for an incrConsumable listening experience. 7. The LED display shows the power level, and the power level can be checked anytime and anywhere. 8. It comes with a portable storage and charging compartment, which is convenient to carry and has good protection. Parameter: Reminder: The headset has two purchase options with charging and without charging box, please pay attention when purchasing.