Stable loss-free transmission over 50 feet: We use the best brand's high-quality CSR Bluetooth 5.0 chip. The earphones have been designed with a dual trigger mechanism. The signal transmission is more stable and loss-free. Popular and stylish appearance: Our product design is unique, be it your charging case or your earphones. The round display screen is popular and luxurious. The flip-top design to open the case is another innovation. The earphones are very small and very stylish. Loud volume + natural sound: The earphones are equipped with a 12 mm speaker to ensure your sound is loud enough. In addition, we use the vibrating diaphragm and HD rendering technology to ensure you get deep bass and clear treble, regardless of whether you make a call or listen to music. Use it safely and comfortably: The size of the earphones is very small (only 1.5 x 1 cm) and they are shaped like a triangle. Thanks to the ergonomic design, the earphones have a 90% fit. They offer a very comfortable wearing experience. One-step connectivity: Take the wireless earphones out of the charging case. They are automatically switched on and will connect to your phone within seconds.