Product introduction:Bluetooth Pro Sports Running Luminous Earphones Headphones，HIFI Stereo Wireless with Mic bicycle Headset，Multi-point Handsfree1. Brand: Zealot2. Name: Sports Bluetooth music headset 3. No: H14. Style: Neckband5. Location: like sport running and enjoy music6. Comfortable wearing: super light， neckband style， easy to use when sports7. The Mic8. One for two device Technical specification:1. Bluetooth ver: 4.12. Bluetooth use range: 10m3. talk time: 8h4. music time: 8h5. Driver Diameter: 10mm6. Frequency range: 20-20khz7. Sensitivity: 85db +/- 3dB8. Impedance: 20Mw9. Mic: Yes10. CVC 6.0 noise reduction11. Sensitivity: -38db +/- 3dB12. Color: Black， White13. Content: 1x headphone 1x usb line S/L earplugs