1. Stereo Hifi Sound Quality And Heavy Bass Function: Supports And AAC High-Definition Audio Decoding Technology, 14mm Reconstructed Biological Diaphragm, High And Low Frequencies Are Even And Natural, The Hearing Is Real And Delicate, And The Sound Quality Is Close To Cd. Ergonomically Designed To Fit Securely Into Your Ears, It Combines An Excellent Fit With A Sophisticated Design For Comfort And Stability Even When Worn For Long Periods Of Time. 2. Waterproof And Sweat-Absorbent: Our Wireless Sports Headphones Are Made Of High-Quality Waterproof Materials, With Simple Texture And Multi-Process Design Of The Headphone Body. Passing High-Standard Waterproof Testing, Bluetooth Headsets Can Effectively Protect Internal Components From Water, Rain And Sweat. A Separate Led Display In The Case Helps Keep The Case At All Times. 3. Dual Noise Reduction, Front And Rear Microphones, Clear Call Quality. Can Reduce Environmental Noise And Lock Out Noise Easily. You Can Make Calls Comfortably Without Any Noise. Stable And Powerful Magnetism, Balanced High, Mid And Low Treble Ranges, Produce Natural Stereo Sound, Compatible With High-Resolution Audio Sources. The Stereo Speakers Feature High Sound Isolation And Quality, Reproducing Excellent Sound Performance And Presence. 4. Easy To Operate/Ultimate Switching Between Automatic Pairing And Single/Dual Modes: Music Play/Pause/Call Start/End/Reject/Activate Siri, All Operations Can Be Completed With One Click. Using An Innovative Bluetooth Chip, You Only Need To Place One Ear On The Case When You Switch From Binaural To Monaural Mode. The Music Playback Time Is More Than Twice That Of Ordinary Bluetooth Headsets. You Can Use It Safely At Work, School, Sports, Mountain Climbing, Etc. 5. Double-Click The Headset When Disconnected To Switch Languages. It Provides A Higher Stable Connection Without Cables And Enjoy A True Wireless Connection. No More Audio Interruptions, Enjoy Your Music And Games. Power Supply Mode:15 Meters Usage:Ear-Hanging Type Voltage:4.2V Whether It Is Single And Binaural:Bilateral Stereo Battery Life:4-8 Hours Style:Sports Style Bluetooth Version: 6983D2 Speaker:F14nn Real Copper Ring Speaker Wireless Frequency:2.4-2.48GHZ Transmission Distance: 10 Meters Charging Time:1-2 Hours (Charging Power Supply 1A/5T) Headphone Battery:35mAh Charging Compartment Battery:250mAh Charging Interface:Type-C Note:Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use. Colour:Black Material:ABS+PC Package Contents: 1 Pair * Coconut Ball Bluetooth Headphones 1 * Charging Cable 1 * Lanyard 1 * Instructions In Chinese And English Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.