Hello Laetitia
According to the instructions, I mean the usual 10 metres. I now have 2 of these things. I'm a huge fan. My flat (Minergie) has very thick walls. I lose the connection as soon as I leave the room around the corner.
In the office, however, I can leave my mobile phone on the second floor and smoke one downstairs in front of the door. Perfect connection.
I don't think the connection quality is a problem. It just depends on the circumstances.
I also had absolutely no problems under water up to 2 metres :-D
