How to charge earbuds with your phone?

With a single pair of wireless earbuds with long battery life, we can enjoy the world of sound for extended periods. When recharging is required, we may use either a charger or the designated charging case, depending on the earbuds type. But some friends start to curious if a smartphone can recharge the earphones? So, just take about one minute to read the guide, to check the answer.
There is such a type of smartphone that can charge the earbuds, which named reverse charging phone - a phone that comes with reverse charging technology. The reverse charging technology is normally used on a rugged phone(what is the meaning of rugged phone?), to recharge other compatible devices through OTG convert cable. Simple to use. Just follow the steps below to charge your earbuds by using your phone:
Tools & Materials
Earphones, an OTG convert cable, a reverse charging phone
Tips: There are several OTG convert cables in the market, like micro USB to micro USB, USB-C to DAC, and more. Please choose according to the type of your device's port.
Step 1:
Turn on your phone.
Step 2:
Connect the OTG convert cable to the phone. (USB-C jack for Android, and lightning DAC jack for iPhone)
Step 3:
Connect the other side of the OTG convert cable to the earphone (if the earphone has a recharge jack), or the charging case.
Step 4:
Done. The recharge precess start.
Read also,