Bluetooth 5.0 Wireless Earbuds, Bluedio Hi(Hurricane) TWS Wireless Earbud Headphones in-Ear Earphones with Charging Case, Mini Car Headset Built-in Mic for Cell Phone/Running/Android, 5Hrs Playtime: Amazon.ca: Electronics

Auto Power On and Pairing with Phone
First Pairing

First step - Open the charging case,long-press the multi-function button respectively, click any one of the earphones, the two earphones can be paired quickly.
Second step-turn on the blutooth of your phone and choose "Hi"
After First Pairing

Put the earphones in the charing case, click the charing button of charing box
Then open the charing box to take out the earphones, they will be turned on and reconnected automatically
How to do if only one earphone has sound or the other earphone does not be connected?

Firstly, long-press the multi-function button to turn on the earphones, press the multi-function button for three times,the earphones will be turned down automatically,
Secondly, put the two earphones back into the charing box, close the the cover, click the charing button of charing box, clear the pairing imformation
Restart the earphones and turn on the Bluetooth of phone for Bluetooth pairing
https://www.amazon.ca/Bluetooth-Wireless-Earbuds-Hurricane-Charging/dp/B07TBRYDBV