M90 Pro M9 M90 Earphone Wireless Bluetooth Earbuds Sports Headphones With Microphone 5.3 - Black

You need to find a way to connect them by placing the earphones into the charging compartment at the same time. Then close the lid and quickly remove the headphones at the same time. It needs to be done more than 5 times to see if both headphone lights are on or not. Use your fingers to quickly touch the headphones and keep touching them with your fingers-