I had already tried "phone free mode "
But even in this mode , Sleepbuds 's bluetooth function is still enable .
I have some RF meter in my hand , so I know bluetooth is still working .
I know it's low energy bluetooth and we often use wifi .etc that have higher radiation exposure .
But the distance between your devices and your head is very matter when we talk about the radiation exposure.
The RF meter does not lie . The radiation strength of low energy bluetooth like Sleepbuds use will decrease quickly when you leave it in several cm and the 3G/4G or wifi can remain radiation strength for much more distance.
But the Sleepbuds is in my ear , I measure the radiation strength near the Sleepbuds under phone free mode . The radiation strength for me is not acceptable . It is still emit signal continually every second , I know Sleepbuds doesn't transmit data to phone. But it still emit signal for waiting phone to reconnect to it .
Could I just disable the bluetooth function ? Mabye let it on some waiting mode , does not emit signal actively in "phone free mode " ?