Hi, Dear little 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. The Neck Mounted Bluetooth Earphones Have Good Stereo Sound Quality, Can Be Inserted Into A Memory Card, And Are Comfortable To Wear. Features: Product name: Bluetooth earphones Bluetooth version:V5.3 Effective receiving distance:20 meters Call time:40 hours Polymer batteries:400mAh belt guard board Horn specifications:10mm 320 copper bass Audio playback time:40 hours Standby time:1000 hours Charging time:2.5 hours Product color: black,red,silver Product weight: 0.1 pound (33g) Gross weight: 0.23 pound (105g) Product size: 7.3x 5.3 in （18.5x13.5cm) Product packaging: 9.4x6.4x1.1 in (24x16.3 x2.8 cm） Product Description: Immersive sound quality experience: Shocking sound chamber, greatly improving sound accuracy and definition, while also loudly playing, Enhance the elasticity of bass. Live sound effect: The sound is truly restored and the sound quality is thorough, with a bright and active listening experience.deep restoration of detail taste Stable transmission as wired: Using innovative Bluetooth chips, music calls often have no latency, lower power consumption, more power saving, more stable calls, and clearer sound Breathable and not stuffy: Elasticity memory cotton filling and leather wrapping material daily wear is both pleasant and comfortable Lightweight folding: The support arm adopts a foldable design, greatly increasing the storage flexibility of the earphones, making them more compact and portable as Fashion item: Beautiful earphones have become a must-have item for fashionable wear, and you deserve them. Package Content: 1x Bluetooth Audio 1x Charging cable 1x Instructions Features: Product name: Bluetooth earphones Bluetooth version:V5.3 Effective receiving distance:20 meters Call time:40 hours Polymer batteries:400mAh belt guard board Horn specifications:10mm 320 copper bass Audio playback time:40 hours Standby time:1000 hours Charging time:2.5 hours