Bluetooth 5.0: wireless headphones are compatible with all bluetooth or 3.5mm plug cable . It is built to provide a quick and stable bluetooth connection and to enable hands-free communication. | Foldable design: depending on your head or ear size, also designed to avoid sound leakage. In case of that and to get both audio and wearing comfort, please take off the headphone every 1-2 hrs to get your ears relax . | Amazing stereo Hi-Fi sound: high definition stereo headphones provide superb music and voice clarity. providing customers with outstanding sound quality. together with advanced software and noise reduction technology. | Long battery life and dual mode: headphones are rechargeable with 250mAh battery, only 2 hours fast charging. you have the freedom to switch between wired mode or wireless mode without interruption. | Comfortable: The super soft memory-protein foam leather earmuff is designed to mimic human skin texture, ensuring lasting comfort and excellent durability. The foldable and stretchable design allows you to find the perfect fit without constraint.