Fangrui Product Details 1. Description: 2. A Short Distance Wireless Communication Device Letting You Listen To Music And Easily Receive Calls While Driving, Traveling, Or In Working At The Office. 3. The Earphone Can Receive Calls By Pressing The Key And Communicate Via A Secure Hd Channel. 4. Control Volume Or Switch Tracks With A Press Of A Button! 5. High Fidelity Sound: Intelligent Noise Reduction,ensures Maximum Signal Quality, And Guarantees Excellent Sound Quality. 6. Compatible With Of Bluetooth-compatible-enabled Devices (such As Mobile Phones, Tablets).up To 20hrs Working Time 1-2hrs Quick Charge, 15 Meters Feet Range.used For A Long Time And The Machine Is Not Hot. 7. Quick Pairing, Bluetooth-compatible 5.0, Automatic Seconds, Ipx5 Waterproof, Earphones Can Be Used. 8. Specifications: 9. Product Model: E1 10. Headphone: 230mah 11. Listening To Songs And Talking: About 20 Hours 12. Charging Time: About 1.5 Hours 13. Bluetooth-compatible Version: Version 5.0 14. Frequency: 40hz-20khz 15. The Impedance Is: 32 Ohms 16. Sensitivity: 85db/mw 17. Waterproof Grade: Ipx 5 18. Product Size: 5.5*2*1.5cm 19. Product Color: Black Red Black Blue White Blue Rose Gold 20. Package Included: 21. 1*earphone 1*charging Cable 1* Manual 1*hook 22. Notes: 23. Due To The Difference Between Different Monitors, The Pictures May Not Reflect The Actual Color Of The Item. 24. Compare The Detail Sizes With Yours, Please Allow 1-3cm Error, Due To Manual Measurement. 25. Please Leaving A Message Before You Give The Bad Feedback, If The Products Have Some Problems. 26. Thanks For Your Understandings. 27. By The Way, If You Like Our Store, Please Add Our Store To Your Favorite Stores, You Can Get Our New Arrival And Discount Information In Time.