An excerpt from an email from the Factory
"1. Radiation level. The DECT 6.0 technology that we use in all wireless headsets has an average radiation of less than 10mW.
2. The SAR level. Page 7 of the attached report gives the FCC limits for radiation exposure in W/kg. The measured results of our LH27x are shown in page 26 of the same report. The Scaled SAR are less than 0.05W/kg which are well below the FCC limits. Attached please find the SAR report for your reference.
As I explained, with the auto power adjustment and zero radiation when the headset is on standby or on charge, our wireless headsets probably offer the user the best protection from radiation of all wireless headsets on the market."