"A301OP" here refers to this mobile phone "OPPO Reno9 A".
This mobile phone 【A301OP】 complies with the Japanese technical regulations and international guidelines regarding exposure to radio waves.
This mobile phone was designed in observance of the Japanese technical regulations regarding exposure to radio waves* and the limits of exposure recommended in the international guidelines, which are equivalent to each other. The international guidelines were set out by the International Commission on Non-Ionizing Radiation Protection (ICNIRP), which is in collaboration with the World Health Organization (WHO), and the permissible limits include a substantial safety margin designed to assure the safety of all persons, regardless of age and health conditions.
The technical regulations and the international guidelines set out the limits of exposure to radio waves as the Specific Absorption Rate, or SAR, which is the value of absorbed energy in any 10 grams of human tissue over a 6-minute period. The SAR limit for mobile phones is 2.0 W/kg. The highest SAR value for this mobile phone when tested for use near the head is 1.520 W/kg**, and that when worn on the body is 1.255 W/kg**. There may be slight differences of the SAR values in individual product, but they all satisfy the limit.
The actual value of SAR of this mobile phone while operating can be well below the indicated above. This is due to automatic changes in the power level of the device to ensure it only uses the minimum power required to access the network.
This mobile phone can be used at positions other than against your head. By using accessories such as a belt clip holster that maintains a 0.5 cm separation with no metal (parts) between it and the body, this mobile phone is certified the compliance with the Japanese technical regulations.
The World Health Organization has stated that "a large number of studies have been performed over the last two decades to assess whether mobile phones pose a potential health risk. To date, no adverse health effects have been established as being caused by mobile phone use."
Please refer to the WHO website if you would like more detailed information.
https://www.who.int/news-room/fact-sheets/detail/electromagnetic-fields-and-public-health-mobile-phones
Please refer to the websites listed below if you would like 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 (in Japanese only)
* The technical regulations are provided in Article 14-2 of the Radio Equipment Regulations, a Ministerial Ordinance of the Radio Act.
** Including other radio systems that can be simultaneously used with 5G/LTE/3G (or LTE/3G or 3G).
This mobile phone 【A301OP】 is a radio transmitter and receiver. It is designed not to exceed the limits for exposure to radio waves recommended by the international guidelines. The guidelines were developed by the International Commission on Non-Ionizing Radiation Protection (ICNIRP) and include safety margins designed to assure the protection of all persons, regardless of age and health conditions. The guidelines use a unit of measurement known as the Specific Absorption Rate, or SAR. The SAR limit for mobile phones is 2.0 W/kg. The highest SAR value for this mobile phone when tested for use near head is 1.520 W/kg*, and that when worn on the body at the separation distance of 0.5 cm from the body is 1.255 W/kg*. For electronic safety, maintain the separation distance with accessories containing no metal, that position handset a minimum of the above distance. Use of other accessories may not ensure compliance with the guidelines.
* The tests are carried out in accordance with the international guidelines for testing.
Simplified Declaration of Conformity for 【A301OP】
Hereby, OPPO declares that the radio equipment type 【A301OP】 is in compliance with Directive 2014/53/EU. The full text of the EU declaration of conformity is available at the following internet address: https://www.oppo.com/en/certification/.
This mobile phone 【A301OP】 is a radio transmitter and receiver. It is designed and manufactured not to exceed the emission limit for exposure to radio frequency (RF) energy required by the Federal Communications Commission (FCC).
The limit is based on standards that were developed by independent scientific organizations through periodic and thorough evaluation of scientific studies. The standards include a substantial safety margin designed to assure the safety of all persons, regardless of age and health conditions.
The exposure standard for mobile phones employs a unit of measurement known as the Specific Absorption Rate (SAR).
The SAR limit set by the FCC is 1.6 W/kg. The tests are performed in positions and locations as required by the FCC.
The highest SAR value for this handset when tested for use near the head is 1.03 W/kg, and that when worn on the body as shown below is 0.52 W/kg.
Body-worn Operation: This mobile phone was tested for typical body-worn operations with the separation distance of 1.5 cm from the body. To maintain compliance with FCC RF exposure requirements, use accessories that maintain the above separation distance between the user's body and the mobile phone. The use of beltclips, holsters and similar accessories should not contain metallic components in its assembly.
The use of accessories that do not satisfy these requirements may not comply with the FCC RF exposure requirements and should be avoided.
The FCC has granted an equipment authorization for this mobile phone with all reported SAR levels evaluated as in compliance with the FCC RF exposure requirements. Filed SAR information of this mobile phone can be found by searching FCC ID R9C-A301OP in the FCC ID Search webpage: https://www.fcc.gov/oet/ea/fccid.
Additional information on SAR can be found on the FCC website at https://www.fcc.gov/general/radio-frequency-safety-0.