About this item Bluetooth 5.4 and Auto Connection: Wireless earbuds adopt Bluetooth 5.4 technology and support HID, HFP, A2DP, and AVRCP profiles, providing a 15-meter wide range and a low 55ms latency. Pairing the earbuds with your device is effortless, and once they are successfully paired, they will automatically reconnect to the last connected device when you open the charging case. The earbuds offer both binaural and mono modes, allowing flexible enjoyment with either the left or right earpiece alone. Hi-Fi Stereo and Crystal Clear Call: Bluetooth 5.4 wireless earphones incorporate 13mm double-layer diaphragm drivers, polymer diaphragm, resulting in sufficiently strong bass and naturally connects to the mid and high frequencies. ENC noise reducing wireless earbuds have built-in 4 high-definition microphones that improve vocals by 75% and 50% more bass. It also ensures high resolution voice recognition and call quality even in noisy environments, providing a crystal clear call expe