after hesitating several models DAfter comments, I stopped on that one.
after trying it really works very well I'm really not disappointed.
black color
3 volume level
possibility of sound and a flashing red LED, or LED's only just convenient actually.
several rings, some of which are long (10 or 20 seconds) this can be useful in some cases.
Lr06 2 for receiver (not included)
1 "button" battery (type shows) for transmitter (included)
Provided with a double thick face to paste the transmitter
there is a feature to synchronize the transmitter and receiver, which I think (but I can not check it) avoids having dinterférences worries with a close or less close neighbors, aillant the same model and it sounds home.
I hope to have done here is a complete and accurate commentary, in order to save time for other potential buyers.
ps: if problem I would come to edit the comment BE even more specific.
