When you wear αble, press and hold Power Supply Button on right ear side to switch the power ON / OFF You can check the battery level with the LED color when you press it while the power is on
■Case the battery level is between 30% and 100% The LED lights green
■Case the battery level is under 30% The LED lights red![](https://cdn.shopify.com/s/files/1/0260/9204/4393/files/FAQ__4_en_480x480.png?v=1602664452)