HTC One M9 - Manual (Page 8)

Important RF Notice
This device was tested for compliance with the applicable FCC and Industry Canada
specific absorption rate (SAR) limits for radio frequency (RF) exposure during typical
body-worn operations. To ensure that RF exposure levels remain at or below the tested
levels, use a belt-clip, holster, or similar accessory that maintains a minimum separation
distance of 1.0 cm between your body and the device, with either the front or back of the
device facing towards your body. Such accessories should not contain any metallic
components. Body-worn accessories that do not meet these specifications may not ensure
compliance with applicable SAR limits and their use should be avoided.
8 Important RF Notice