1. Wireless Sports Bluetooth Headphones 2. Bluetooth V4.0 technology: faster transmission 3. Super Bass Stereo: Bring you a great music experience 4. Built-in microphone: support hands-free calling 5. Wire control: support volume adjustment, song switching, answering/hanging up calls 6. CVC 6.0 Noise Reduction: Provides clear conversation and undisturbed audio 7. Support voice prompts (Chinese and English) 8. iOS battery indicator: easily grasp the remaining battery 9. Multi-point connection: can connect two devices at the same time 10. Built-in high-performance lithium battery, low power consumption, long working time