Hi,my dear angel, welcome to Jacenvly, our products are cheap and good quality, price is fair, you can't miss it. If this product is not your style, please click on our store, we have many kinds of products, there will be you like and suits you. If you have any questions about your purchase, please send us the first message, we offer world class customer service to make your purchase without your worries. Have a nice day. Headset Wireless Bluetooth Headset Metal Telescopic New Large Earmuff Bluetooth Headset Features: Bluetooth wireless and wired dual-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 -band 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 Durable 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 Features: Bluetooth wireless and wired dual-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