Anker air conduction earphones. I've used them for about a month, but I'm planning to buy something else, so I'm selling them. They offer long playback time. I will ship them fully charged. ⚠️ No returns or refunds after shipping. Please purchase with the understanding that this is a no-claims sale. Anker Soundcore AeroFit (Bluetooth 5.3) [Open-ear wireless earphones / IP57 dustproof and waterproof standard / Up to 42 hours of playback / Multipoint connection / Compliant with PSE technical standards] Brand: Soundcore Color: Black Headphone Type: Open-ear earphones Headphone Jack: Truly Wireless Wireless Communication Technology: Bluetooth Included Components: Cable, Earphones, Charging Case A new standard in earphone experience: You can always hear the surrounding sounds, so you can use them with peace of mind while doing housework, running, or having conversations. They also reduce the fatigue and stuffiness unique to earphones, providing a comfortable fit. Lightweight design: Ultra-lightweight at only about 8.5g and an ergonomic design that fits snugly in your ears. You'll forget you're even wearing them, even after long hours of use. Up to 42 hours of long playback: The earphones themselves provide up to 11 hours of playback on a full charge, and up to 42 hours when used with the included charging case. Also, a 10-minute charge provides about 4 hours of music playback. Perfect for everyday use: Supports various functions such as multipoint connection that can connect to two devices simultaneously, clear calls with 4 microphones and AI, and IP57 waterproof standard. You can use them in all kinds of everyday situations, from sports to meetings. Package contents: Main unit, charging case, safety manual, quick start guide, product certified with the Technical Conformity Mark (Frequency band: 2.40~2.48GHz) These earphones allow you to listen to music without blocking your ears, making them suitable for cycling and running.