[Ergonomic design and comfortable fit] Lightweight design and ergonomic shape can reduce the burden on ears and ensure the comfortable fit of any ear, even for women and children. You can even wear it comfortably when sleeping, exercising and commuting. In addition, earplugs come in a variety of sizes, allowing you to find the perfect earmuffs for a personalized and very comfortable fit. [Unparalleled Sound Quality] Designed with the newly upgraded 8mm speaker and acoustic technology, our headphones can highlight bass fullness, while ensuring the natural and meticulous vocals and high notes, and reproduce the sound of CD quality. Prepare yourself for the ultimate immersive audio experience. [55-hour battery life] allows you to immerse yourself freely in thousands of songs. A single charge can last for 15 hours, and the total playing time of the charging box is 55 hours. It also supports wireless charging, allowing you to charge conveniently without wires or plugs. Please rest assured that we have equipped them with sufficient strength to accompany you in all your adventures! [IPX8 Waterproof] The internal components of the wireless headset are made of IPX8 waterproof nano-coating, which can effectively prevent sweat and raindrops, thus prolonging the service life of earplugs, and is suitable for running, swimming, cycling and other sports. [Latest Bluetooth 5.3] adopts advanced Bluetooth 5.3 technology and supports HSP, HFP, A2DP and AVRCP configuration files, which greatly improves the transmission speed and enhances the connection stability. The signal quality will not be delayed or degraded during music playback and call. With a stable connection range of up to 15m, you can easily control your music and mobile phone whether you are at home, office or on the road. Custom EQ with Application is compatible with the application, so you can freely switch between 16 EQ modes and explore various music styles. By adjusting the specific frequency, it will bring you a feast of hearing. In addition, you can also adjust the touch settings yourself. [Designed for portability and light weight] The wireless earplug is small and light, with a small protective case, which provides you with a brand-new wearing experience and allows you to enjoy music with headphones anytime and anywhere. In addition, it is equipped with a lanyard, so you can carry it easily without worrying about taking up space in your bag or pocket.