Features:-100% brand new and high quality.-It use Bluetooth V5.1 technology, delivering high speed and stable transmission.-It is equipped with soft PU skin materials over the ear, feel lightweight and contribute to your ear protection.-It has multiple playback modes, such as Bluetooth connection, 3.5mm audio cable, allowing you to enjoy endless music.-This is not only a Bluetooth headset, but also a wired headset. With the included cable, you can still enjoy favorite music when the battery runs low.-Foldable and adjustable headband length, soft ear cushion, easy for storage, and comfortable to wear for a long time.-Also, built-in microphone enables hands-free calls, delivering clear and real talking sound.-Button Function: Answer/hang up the call, play/pause music or change volume.-Strong compatibility, IOS/Android universal,it could be compatible with the bluetooth enabled devices. Specification:-Bluetooth Version: V5.1-Operation Range: 10 Meters-Speaker Unit: 40mm-Frequency Response: 20Hz-20kHz-Impedance: 32?-Sensitivity: 108±3dB-Music Time: about 8 hours-Charging Time: about 2-3 Hours-Charging Port: USB Type C Package Included:1 x Bluetooth Headphone1 x Charging Cable1 x 3.5mm Audio Cable1 x User Manual