【Improvements】To facilitate charging, the magnetic charging port has been changed to a Type-C charging port. The main control chip has been upgraded. The battery capacity has been increased from 200mAh to 220mAh. 【Revolutionary Third Generation Bone Conduction Technology】 Crafted with our self-developed third generation bone conduction speaker technology, this Bluetooth wireless headphones take audio performance to the next level. After over three years of research and development, we've overcome technical challenges to create a superior bone conduction technology that significantly improves transmission efficiency and audio quality, particularly for low and mid-frequency ranges. 【IP67 Super Waterproof】 Internally sealed for sweat and waterproof protection, suitable for running and cycling in all weather conditions. Convenient and IP67 waterproof Type-C charging provides an additional layer of protection, further enhancing the earphones' waterproof performance. 【Ultra-lightweight & Open-Ear Comfort】 Sporting an airy weight of 30g, these bone conduction wireless headphones feature an ergonomic open-ear design that prioritizes long-term comfort and ear health. The perfect companion for extended wear during outdoor activities like running and cycling, our headphones let you enjoy music while still staying attuned to your surroundings. 【Unparalleled Battery Life for Extended Playtime】 Powered by a robust lithium battery, this headset offer approximately 10 hours of uninterrupted playback or 12 hours of call time on a single full charge. Ideal for marathon runners, indoor fitness enthusiasts and long-duration music lovers, our headphones promise to keep your tunes playing for as long as you need. 【Optimized Audio Experience Tailored By Acoustic Experts】 In collaboration with our French acoustic consultant, we've carefully designed two optimized music modes for our headphones: the Clear Audio mode for pristine vocal clarity and the Bass Boost mode for an enhanced low-frequency punch. These modes can be switched at your preference to tailor your audio experience. Color Obsidian Black Theme Sport Impedance 8 Ohms Brand Name S+ Model Name Bone Conduction Style Name Modern Unit Count 1.0 Count Sensitivity 88 dB Control Type Button Control Manufacturer Shenzhen Tianyuan Industry Co.,Ltd Model Number S23 BuiltIn Media Cable, User Manual Noise Control Active Noise Cancellation Control Method Push Button Earpiece Shape Hook Headphone Jack No Jack Frequency Range 20 Hz - 20 KHz Number of Items 1 Antenna Location Calling, Cycling, Exercising, Running Audio Driver Type Bone Conduction Driver Bluetooth Version 5.0 Subject Character Sport Compatible Devices Cellphones, Tablets, Television Enclosure Material Plastic, Silicone Frequency Response 20 KHz Additional Features Built-In Voice Assistant, Lightweight, Sweatproof, Volume Control Battery Charge Time 1.5 Hours Wireless Technology Bluetooth Battery Average Life 10 Hours Warranty Description 1 year Age Range Description Adult Water Resistance Level Waterproof Connectivity Technology Bluetooth, Wireless Headphones Ear Placement Open Ear Specific Uses For Product Business, Travel Headphone Folding Features Open Ear