(1) . Upgrade version, left&right earphone can be switched freely True Wireless headphones. (2).High-performance Bluetooth 5.0 earphones,fast connection, stable and low power consumption. (3).Bluetooth headphone with Imported silicon Microphone, bilateral HD nose reduction calling headset. (4).Automatically turn on and connect each headphone. Very easy for use. (5).10mm dynamic driver, lossless HIFI sound quality wireless earphone with composite film design. (6).200h standby time, offer you more powerful battery life. (7).Smart and sensitive touch control