bantu jawab dong, tolong banget ya

1. This notice is about a prohibition to not to use Cellular phones and Wireless Devices.
2. This prohibition usually displayed in a hospital.
3. Cellular phones and wireless devices should be turned off.
4. Comes out
5. They can interfere the operation of critical care equipment.

Terimakasih, maaf jika salah. Selamat belajar!