Wireless Bluetooth function A Driven by the latest Bluetooth 5.0 technology, fast,secure and stable signal transmission and lower power consumption, this device will bring you Hi-Fi audio even in a noisy and busy environment. 2 modes: Awei Bluetooth headphones can support wireless mode and wired mode for there is a wired jack on its external, meeting your different needs. Long battery life: Built-in 250mAh Li-ion battery, you will get the seamless enjoyment of music for 15 hours or talk time for 12 hours after fully charged. Foldable design: With the foldable design, this device could easily fit into your bag without any hassle, suitable for travel, walking, get the real beats if you love music..............this  must get headphone sets