Headset Wireless Bluetooth Headset Metal Telescopic New Large Earmuff Bluetooth Headset Features: Bluetooth wireless and wired-purpose design: The headset has a 3.5MM audio port and a card- socket, which can meet your needs Free adjustment of telescopic head beam: the telescopic arm design is used to - adjust the size of the headphone head beam, most of which can be worn comfortably Skin-friendly ear stickers are accompanied by softness: ear muffs are made of skin-friendly leather and vegetable soft memory sponge, which are breathable and not stuffy, providing comfortable wearing enjoyment No delay picture synchronization in the game: the connection is stable and continuous. -, listen to the voice, distinguish the position, high-definition video, ultra-low delay picture synchronization 40MM super speaker: high resolution to - the details of every sound, HIFI level - adjusted by - . Like a live concert, you can enjoy the exciting immersive music and give you a new experience - your- Product Description: Product parameters: New version of Bluetooth: V5.3 Charging time: about 2 hours Music playback time: about 15 hours ( to volume and song) Talk time: about 15 hours (depending on the volume) Battery specification: 3.7V/400mAh Class A lithium battery with double protective plates Effective stable connection distance: ≥ 20m Support external card- ( card) Support FM radio function foldable structure, metal telescopic tab Input voltage/current: 5V/1A Horn: diameter φ 40MM，32 Ω, Audio output power: 22mw * 2 Microphone: sensitivity - 42dB ± 3 Product packaging size (CM): 18.3 * 9.3 * 14.5 Package weight (g): 350 Package: 1 * Headphones 1 * Charging cable 1 * Audio cable 1 * Instructions 1 * Packing box Bass-Heavy Sound Effects: Good Sound Effects Make Music Sound Better.And So Does Your Day.Feel the Sound Through the Deep Bass Provided by Your Headphones and Add Comfort to Your Daily Routine. Comfortable to Wear: the Ergonomic In-Ear Design is Gentle and Comfortable to Wear, Giving You Hours of Listening Pleasure, More Comfort and Clearer Sound. Take it with You: Time to Start Exercising? Whether You'Re Out in the Cold or Exercising, These Headphones Follow You Around, Withstanding Light Water Droplets and Sweat, Making Them a Great Companion When Exercising and Working Out! Automatic On/Connection: Easily Manage Your Music, Adjust the Volume and Take Calls with the Hassle-Free Control at Your Fingertips with this Wireless Headset that Connects to Most Bluetooth-Enabled Devices， Including Smartphones, Tv, Computers, Laptops and Smartwatches. We Attach Great Importance to Product Quality and Customer Experience,If You Have Any Questions About the Product, Please Contact Us Customer Service,We Will Provide You with Satisfactory