AIR2 TWS Bluetooth Earphones with Charging Box for Sports Daily Wear black

Description

First quick use: After pressingthe multi-function key of two Bluetooth headphones for a long time,the two headphones will flash(no matter what light it flashes,the mobile phone does not search for bluetooth).After 7-10 second,one of them will alternately flash red and bluebefore the bluetooth function can be turned on.Search for Bluetooth is wrong or not working properly,please clear the Bluetooth list of your mobile phone and press the instructions again