Smart button design] high quality ergonomic beach movement design, uniform movement, bluetooth earbud scanning installed and fixed in the ear canal, combined with smart button sensor, you can easily answer calls, switch or turn off music just press the button. [Comfortable fit and convenient touch control] - Special ergonomic design, only 0.11 oz, allows wireless earbuds to fit comfortably in the ear. Just tap the earbuds to dance songs, play/pause music, answer/end calls, activate the voice assistant - no need to move out of the phone. [Advanced Bluetooth 5.0]: Advanced Bluetooth 5.0 technology can ensure fast and stable connection, low power consumption and low latency. When you play online games, it offers faster and more stable Bluetooth that is not easy to disconnect. Supports a launch range of 49 feet.