Open the frame and the window, and you can see the smart connection: the advanced customization of the Bluetooth headset. Open the charging box and open the earphone jack of the phone, which makes visual operation more convenient. After connection, you can also see the performance of the headset and the charging case From morning to evening, 20 hours of meals: thanks to the performance monitoring of the new generation of chips, the headset can be used for about 5 hours on a single charge and the charging station can be used for up to 20 hours. No matter day or night, the battery life is worry-free and the music is uninterrupted. Dual-microphone noise reduction without fear of interference: Each headset has two microphones built-in high-sensitivity and uses beam-shaping technology to eliminate background noise during the call, so that the other party can clearly hear your voice and the call is clear during the call. Smart and genuine products, freedom and freedom: split true wireless design, breaking the master-slave restriction, can be worn on left and right ears, and can be flexibly switched between single and double ears. You can enjoy binaural use and greater wireless stereo freedom with just one ear. Comfortable, mid-ear and stable wearing comfort: the semi-in-ear design earpiece fits the ear canal better and provides a stable and comfortable wearing experience for both ears. The single-sided headset weighs only 4.7g, and the compact and lightweight body makes it easy to use