Features: 1. BT 5.0 & Easy Control: Compatible with most devices, such as PC, mobile phone, tablet, TV. The noise-cancling high-definition microphone brings you a clear hands- call experience and easily answer any incoming call. Simple controls hp you handle any calls, song switching, and volume changes. (The microphone only works in wiress mode.)2. More Comfortable Fit: Exclent soft protein earmuffs, adjustable headband, skin-friendly rubber layer to provide you with a more comfortable and durable experience.3. Foldable Design: The foldable design is more convenient to carry and save your space, you can take it wherever you want. (TF mode only supports MP3 format.)4. High- Microphone: The standard headphone size fits your ears perfectly, with omnidirectional microphone flexible-high sensitivity and noice cancling.5. Shocking Sound Experience: Fe the shocking sound experience, can analyze the exclently, and present the sound.Specifications:1. Bluetooth version: V5.02. Transmission distance: 10 meters 3. Usage time: 10-15 hours4. Standby time: 180 hours5. Battery capacity: 3.7v /500MA6. Horn size: 40 mm7. Sensitivity :115 db8. Impedance: 32 ohm 9. Frequency response :20hz - 20khz10. Rated power :15mW211. Packing weight: 430G12. Package size: 19.5x8.7x20.5cm13. Packing size: 82.5*46.5*48.5CM14. Packing net weight: 15kg15. Gross weight of packing: 16.8kg16. Packing quantity: 40PCS/CTNPackage Included:Bluetooth headset x 1USB cable x 1Manual x 1