Blu Studio 7.0 User Manual page 28

While there may be differences between the SAR levels of various
phones and at various positions, they all meet the government
requirements.
SAR compliance for body-worn operation is based on a separation
distance of 0 mm between the unit and the human body. Carry this
device at least 0 mm away from your body to ensure RF exposure
level compliant or lower to the reported level. To support body-worn
operation, choose the belt clips or holsters, which do not contain
metallic components, to maintain a separation of 0 mm between this
device and your body.
RF exposure compliance with any body-worn accessory, which
contains metal, was not tested and certified, and use such
body-worn accessory should be avoided.
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