SONY Wireless Earphones WF-C710N (PZ) Pink Included: Charging case, Hybrid earpieces (XS (2), M (2), XL (2)) 《Product Description》 With the noise-canceling function, you can immerse yourself in a world of music even in noisy environments such as trains and buses, as well as in environments with a lot of people, such as in town or at cafes. Furthermore, it is equipped with an "Ambient Sound (External Sound Input) Mode," allowing you to listen to the surrounding sounds while listening to music content. Also, despite its small size, it achieves high-quality sound with clear sound quality that balances the low to high frequencies. The battery lasts for approximately 8.5 hours with the main unit alone, and a long battery life of up to approximately 30 hours with the case. It also supports quick charging, allowing for approximately 60 minutes of playback with a 5-minute charge. This is a highly recommended model for your first noise-canceling experience. Thank you.