Crystal-Clear Calls: TaoTronics SoundLiberty 79 TWS earbuds with Smart AI Noise Reduction Technology makes your voice coherent for crystal-clear calls – even in noisy environments such as in an office, café or on a bus, train, car, etc. Hi-Fi Stereo Sound Quality: It offers incredibly clear sound quality and Powerful Bass Performance with 6mm PEEK+PU Speaker Driver.You can enjoy the amazing music feast while traveling, working, excising etc. 30Hr Extra-Long Playtime: Bluetooth earphones stream Hi-Fi stereo sound consistently for up to 8hrs on a single full charge and 22 extra hours in the compact charging case which powered by USB-C. Strong Connection: Wireless earbuds’ built-in premium chipset combines the latest Bluetooth 5.0 technology with advanced LDS antenna for a fast & stable signal transmission with a broader Bluetooth range up to 20m/66ft User-Friendly Design: Unique role switching tech enables each earbud to connect independently to your device for added convenience; ergonomic design maximizes comfort, fit & stability for all-day wearing TaoTronics - Technology Enhances Life TaoTronics, a flagship brand under the Sunvalley group, is dedicated to providing superior-quality, reasonably priced electronic products that improve the lives of our customers. We strive to develop, innovate and focus on utilizing the latest technology with easy-to-use devices. Technical Specifications: Audio Codec: SBC, AAC Playtime: 8hrs, up to 40hrs total with charging case Waterproof: IPX8 Bluetooth Version: 5.0 Bluetooth Range: up to 20m/66ft