high tech helmet 3d model

In the left and right side of the year part of the helmet outside you I am inside you can add two ppg sensors and inside as a top part top part of the head inside you can add an FSR sensor on the on the strap of the helmet you can add hall sensor and in the back side a lithium ion battery ESP 32 microcontroller charging module and two years speakers in both side of ears UN label them and I can see them