[Auto Connecting and Auto Pairing] Bluetooth 5. 0 fast and stable transmission without tangling. Bluetooth earbuds are on and pair with each other automatically when taken out of the charging case and they connect back to the last paired device automatically [LED Power Display]: The charging case design with an LED digital power display, which can display both of the earbuds' power. Let you know the power consumption at any time. [Binaural Call]: Built-in double-channel inside the earbuds, it supports you to connect with your Bluetooth devices with any one of them. [Voice Assistant]: One tap control to summon up the voice assistant of your smartphone, which supports Siri from the iPhone and other Android phones. [Smart Noise Cancellation] The earbuds come with 6mm driver units and adopt smart noise cancellation tech, providing you lossless clear sound with less noise even in listening to music or talking. [Comfortable wearing]: comfortable to wear without falling, compact body, hidden in the ear wearing just three-point support program that fits the cochlea, and then the intense exercise can not go away, calmly face. [Bluetooth 5.0 chip]: Bluetooth V5.0 new upgrade chip, the transmission is more stable, the connection is simpler, the call is more pleasant, the phone is stable, the game is not stuck, the movie is constantly sounded.