Hi @Влад4, let me see if I can help out here!
I have translated your question to English as this is an International forum, please post any replies in English and it will be easier for me and other users to assist you.
Let's go through the icons in the status bar from left to right looking at the picture that you have attached. The first one is the alarm icon indicating that you have a reoccurring alarm set. The second one is VoLTE which is an abbreviation for Voice over LTE, for more information on VoLTE and its benefits, click here. the third and fourth icon is the icons showing the signal strength on your SIM cards and the fifth icon is showing the battery level of your phone.
I hope that answered your question! Please let me know if I have misinterpreted your question in any way!
