Samsung Galaxy A20 Notes On Usage page 57

This mobile phone can be used in positions other than
against your ear. Use an accessory such as a carrying
case, etc. so that you can hold the product at least
1.5 cm away from your body and also do not contain
metal parts between the product and your body. By
doing this, this mobile phone complies with Japanese
technical regulations and international guidelines
regarding exposure to radio waves.
The World Health Organization has stated that
present scientific information does not indicate that
use of mobile devices has any harmful effects on the
human body. They recommend that if you are still
worried about your exposure then you can limit your
talk time or use a handsfree kit to keep the mobile
phone away from your head and body. If you would like
to know more detailed information, please refer to the
WHO website.
https://www.who.int/emf
*1 Technical regulations are defined by the Ministerial
Ordinance Related to Radio Law (Article 14-2 of Radio
Equipment Regulations).
*2 This includes other radio systems that can be used
simultaneously.
Please refer to the websites listed below if you would
like to know more detailed information regarding SAR.
○ Ministry of Internal Affairs and Communications
website:
https://www.tele.soumu.go.jp/e/sys/ele/index.htm
○ Association of Radio Industries and Businesses
website:
https://www.arib-emf.org/01denpa/denpa02-02.
html (Japanese)
○ Galaxy homepage:
https://www.samsung.com/sar/sarMain.do
○ au homepage:
https://www.au.com/english
Appendix
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