• Official Marvel Licensed Product
• High-definition sound quality Bluetooth: High-fidelity crystal-clear sound, deep and powerful bass ensures the highest music quality. Let the magic of music fill your soul.
• Fast charging: Charge your battery for only 2 hours of charging, providing up to 15 hours of music (depending on volume and audio content) for music enjoyment and calls.
• Magnetic Necklace Design: Safe and magnetic design, the headphones are worn like a necklace when not in use. You can access them at any time without having to search for pockets. 
• Clear phone calls and long distances: Built-in HD microphone with noise reduction and CVC 6.0 technology ensures you won't miss any calls in noisy environments. A working distance of up to 10m during a phone call or music playback does not cause any interruption or cut-off.