Hello dear students, today we will teach you how to find the additional level of your mobile. If the additional level is more than 1.6 watt per kg, it is harmful for your body to face a lander, you can face the cancer of your bone and your skin, other diseases. So when you have to choose the mobile, you have to check the additional level. And in the demo, I have two mobile, one is this is carbon 18 plus and this is ZTE N91 N90. So I am checking. Checking is very simple, you just dial star hash 07 hash. You are seeing that the carbon 18 plus SAR is 0.95 watt per kg. SAR means specific adoption rate. It means it is less than 1.6 watt per kg, so it is less harmful. Now we are checking this mobile. I am just dialing star 0, not a star 0, can some star hash 07 hash and I am just pressing it. I am not getting any message from this. So any mobile, who is not mentioning or it is more than 1.6 watt per kg here, it is harmful for your body. So you just check by dialing star hash 07 hash. Just again I am just a star hash 07 hash. You are seeing that here. Okay. Thank you very much.