First, bid farewell to hand-held phones and drive blindly. Second: The sound of the open directional audio glasses can obtain information about the surrounding environment at all times, making it safer to use. Wear it for a long time without burden, and the ears will not breed bacteria. Wearing traditional in-ear earphones for a long time affects hearing, causing damage to the eardrums and even ear inflammation. It is too tight to hear outside sounds, and it is very dangerous during driving or sports. Third: The combination of glasses and Bluetooth is a headset and even glasses. It is fashionable and has a strong sense of technology. It has a wide range of usage scenarios and is suitable for daily indoor, commuting, outdoor sports, self-driving travel, etc.