How far should I keep the device from my body when in use to comply with RF safety guidelines?

For countries that adopted the SAR limit of 1.6 W/kg over 1 gram of tissue, the device complies with RF specifications at a distance of 1.50 cm from your body. For countries using the 2.0 W/kg limit over 10 grams of tissue, the required body distance is 0.50 cm. The TFY-LX3 highest reported SAR values are: head SAR 0.94 W/kg, body SAR 0.79 W/kg, and hotspot SAR 0.99 W/kg. (Page 7)