Fangrui Product Details 1. Stylish And Cool Appearance Design, Built-in High-quality Bluetooth Chip, Let Music Surround Your Life And Enjoy The Feast Of Music. 2. Hands-free Function, Truly Freeing Your Hands, You Can Ride Safely, And You Dont Need To Lift Your Phone To Make Calls, Which Is 3. Built-in Rechargeable Lithium-ion Battery, Long Standby Time, Long Working Time, Low Battery Voice Alarm, Easy To Know When To Charge. 4. New Waterproof Structure Design, Supports Intelligent Voice Control Function For Of Ios 4.0 And Above, And Supports For Android Intelligent Voice Control Function, Which Is Convenient, Fast And Smart. 5. Fm Radio Function (the Effect Vary Depending On The Usage Scenario And Environment) Using The New Bluetooth 5.0+ Bluetooth Technology, Transmission, Low Power Consumption, With Automatic Answering Function, You Can Also Manually Answer And Reject Calls, Safe And Fast, Built-in High-quality Anti-interference Microphone, Can Effectively Achieve Hands-free Answering And Hang Up. High-fidelity Sound Effec