What is MMS? What's the use of mobile phone MMS function?

You can send multimedia information, such as photos, voice, etc. (provided that the other party is also a MMS mobile phone). MMS is 50 minutes (except the discount package), which is received free of charge. Just like SMS, there is no charge if you don't send it, because the MMS function belongs to the mobile phone itself and can't be cancelled. If you don't want to use it, you can call the operator's customer service phone to cancel the GPRS function, but after GPRS is cancelled, the mobile phone can't access the Internet, and someone else will give it to you.