Features:Wirele Connectivity:Experience the freedom of BT 5.3 technology with our headset, allowing you to enjoy your favorite music or take calls without the hale of tangled wires.AUX IN Wired Connection:In addition to BT, our headset also supports AUX IN, allowing you to connect it to a wide range of non-BT devices such as laptops, tablets, and gaming consoles.Comfortable to Wear:The adjustable headband ensures a perfect fit for all head sizes, while the soft and breathable ear cushions provide long-lasting comfort. Foldable ear cups make it easy to store and carry.Long-lasting Battery Life:Built-in 400mAh lithium battery provides 14 hours of music playback or talk time. Say goodbye to frequent charging and enjoy your favorite tunes on the go.Superior Sound Quality:Immerse yourself in high-quality audio. Whether you're listening to music, watching movies, or making calls, it delivers crystal-clear sound, ensuring an immersive audio experience.Note: When in AUX-IN mode, it is an ordinary wired headset and buttons cannot work.Specifications:BT Version: 5.3Transmiion Range: About 15m (no obstacle)Impedance: 32Frequency Range: 20-20KHZDrive Unit Diameter: 40mmBattery Capacity: 3.7V 400mAhWorking Time: about 14 hoursCharging Time: about 2 hoursCharging Port: Type-CMaterial: PC+ABSColor: Beige gold, titanium black, silver white, mint green, coral red, navy blue (Optional)Item Size: 19.7*18.5*7.6cm/7.75*7.28*2.99inPackage Size: 20.5*19.5*8.5cm/8.07*7.67*3.34inPackage Weight: 588g/20.74ozPackage List:1 * Headset1 * Charging Cable1 * 3.5mm Audio Cable1 * User Manual