such as a device case and a device holster are not composed of metal components.
Keep your device 0 mm away from your body to meet the requirement earlier
mentioned.
This device was tested for typical body-worn operations. To comply with RF
exposure requirements, a minimum separation distance of 0 mm must be
maintained between the user’s body and the handset, including the antenna.
Third-party belt-clips, holsters, and similar accessories used by this device should
not contain any metallic components. Body-worn accessories that do not meet
these requirements may not comply with RF exposure requirements and should be
avoided. Use only the supplied or an approved antenna.