There is no warranty service. If you want warranty service, you can purchase it on Amazon. If there is a problem with ebay within one month, you can return the goods for free.

🔊 Immersive 15mm Sound + Spatial Audio Feel every beat like never before! Equipped with 15mm oversized drivers and dynamic bass enhancement, our open-ear headphones deliver concert-hall-quality audio. Tested by London musicians: Hear violins in Mozart and bass drops in hip-hop with equal clarity – even on windy Thames bridges!

🔇 Safe Open Listening | Crystal-Clear Awareness Experience studio-grade sound while hearing traffic, Tube announcements, and chats in perfect balance. Our directional audio technology beams music straight to your ear canal – crucial for runners dodging black cabs, cyclists on roundabouts, and gym-goers spotting mates across the floor.

🚀 Bluetooth 5.4 | 22m Rock-Solid Connection Never drop a beat! 3x faster pairing & 2x more stable than older Bluetooth. 22m range penetrates brick walls – phone stays in locker while you lift. Finally, headphones that don’t cut out on Tube escalators! (London commuter)

⚡ 40H Marathon Battery + Live Power Display Stop guessing, start knowing! 7-hour playtime per charge + 40H from case = 47H total (proven with 7h max-volume playback). The smart digital display shows exact battery % – unlike blinking lights. *Charge 20 mins = 2 hours of gym time!

👂 Feather-Light 8g Comfort | All-Day Wear Lighter than a £1 coin! At just 8g per earbud with flexible titanium earhooks, runners report: Zero pressure after 3-hour shifts – forget they’re there! Open-ear design keeps you aware of traffic, colleagues, and coffee orders. *90% less ear fatigue vs. in-ear buds.

🛡️ IPX6 Sweatproof Armor | Train Fearlessly Survives monsoon-level rain & sweat storms! Rated IPX6 (2x tougher than standard sports earbuds), these headphones endured 100+ hours. Cyclists love them: No slipping during rainy commutes – stays put even at 30km/h downhill!