Product name: Hanging neck type Bluetooth headset Bluetooth version: V5.4 Battery capacity: 280mAh Working distance: 10 meters Charging time: 1.5-2 hours Standby time: 380 hours Music/talk time: 18-22 hours Color: Black/Blue/pink Features: 1. One-click answer/return call, K song back 2. Play/pause music 3. Bilateral calls, automatic pairing 4.F13 speaker stereo 5.TYPE-C charging port 6.LED intelligent digital display Sound card headphones: Can be used for singing, suitable for outdoor and indoor use. It's a headset, a sound card, a microphone. Experience hi-fi audio with the new Bluetooth 5.4 stable, clear connection. Enjoy immersive sound with intelligent noise reduction. Wireless sound card and audio editing headphones: Designed for sports use, the neck strap makes the headphones secure and prevents loss during sports. The wireless design provides comfort and style without the hassle of wire source entanglement. LED display: The LED display displays the battery level at a glance to help you manage power efficiently. Charge the headset as needed to ensure uninterrupted use. Waterproof headphones: Multi-layer protection, waterproof and sweat resistant. Ideal for strenuous exercise and unpredictable weather conditions. Wireless sound card live headsets: Easily connect to your smartphone or tablet via Bluetooth for seamless use. The three-button interface allows easy functional switching and syncing of audio and video.