AWEI A921BL Sport Bluetooth Earphone Magnetic Function

. Magnetic design: easy to wear and make sure you keep it firmly around your neck while exercising 2. Bluetooth V4.0 technology: faster transmission 3. Super Bass Steeo: Bring a great music experience 4. Built-in microphone: support hands-free calls 5. Wire control: Support volume adjustment, song switching, answering/hanging up calls 6. CVC 6.0 Noise Cancellation: provides clear conversations and undisturbed music