Excellent camera (with a small defect that can be corrected so-even) trés s good performance

Compared to other products there is no picture (I finally purchased and tested in succession 4 models meet almost identical specifications except the output power here 5W and others announced 3W, 3 models look , prices and specifications almost identical model 11 -1 I was reimbursed almost inaudible, 1 other just ok no more, 3 January 14 bought quite satisfactory despite a practical power much lower than the latter: the demands of children ...).
This bluetooth phone orders + HP has a powerful and clear sound for phone drive as if you were talking to your passenger while the caller hears very distinctly without an echo as if speaking directly into the microphone of your smartphone while you are to 60cm of the device. For music it's very nice during a bike ride ... etc.
Well, the small side of the coin is that in telephony, initially, the caller can hear you wrong, if need repair but it's very simple: the microphone is a small hole behind the waist in black silicone (up like a tire around the unit) of high resistance and protects water and shocks, and the edges of holes burrs (at least on the one I received). These disrupt the micro burrs and therefore the sound of your voice heard by the caller, this very significantly (mitigation and loss of clarity), and the led the burrs make barely visible. We must undo the belt of the rim (which takes like a rubber band), and using a small wheel Dremmel and "tapered end" deburring the inside of the hole (do not zoom) and under any circumstances use a knife or other cutting tool (abrasive on a pencil tip can work but it will be longer ... The improvement is considerable. When reassembling must be very careful about the position but with the mark on the LED which is next to the microphone there is no problem.
For installation drive must find a place such as the micro (the led) points toward your face, it's much better. I set the camera on the fixed window (there's one on one C3); then it is within range without body movement hand as a complement to steering wheel, which enables control of safely.
Att: this is not a pub, I am a normal customer but engineer, I also used to write docs, articles and books, that's all. I found it a pity that this good device may not be enough in value by a minor fault that can be easily fixed.

03/05/2015: As promised I made range and battery life test:
1 Sound level: test listening radio France-Info: sound level on LG Pad tablet 500V 70%, very comfortable and pleasant listening - this is too much more:
- Listening to radio to follow a program in one room of 30m2
- 1m 68db sound level meter (listening level high enough not to really listen to another thing talking without losing the thread)
- 5m 60db: Next Level meter of normal conversation
allows normal listening throughout the room

2- listening on battery life (the device is used with the charger as power supply) under the specified conditions (68db at 1m): 6 hours (this is the way to 75% in music it's probably a little less

3- Standby: tested on 24 Telephone RAS

4 Range: 15m exterior, interior (1 or 2 floor thick walls) 10m. A 10m 50cm stone wall stops the signal.