Great band with special

The collar is quite rigid in diameter and thicker than AA batteries.
Just imagine, the dog flip a thin garden hose, in which connection / interface of the two ends of two AA batteries are incorporated into a very stable compound. The band weighs in our size 50 batteries with about 110 grams.
As far as the downside ...

I have the tape in white, it lights up very well.
The advantage is the robustness that brings this necklace with it. The batteries are protected - obviously the effort when changing the battery for this protection is slightly higher - but in max. 3 minutes carefully managed and the tape is applied to the dog. In our experience, really waterproof. While you are walking in the rain, but when swimming close (water training). The luminosity of the ribbon is to assess certainly vary depending on the use of the dog. We go with our dog often in a pitch-black forest run - as the band appears with fresh batteries very, when the dog is walking. On the other hand, one can also certainly make the dog 100 meters or more away when the Batt. are fresh. The Batt. build due to LED technology very slowly, one hour estimate I can not say seriously, since the Batt you. have very different services. We need the Batt. Change (in good quality hardware store) after about 70 hours of light - Is it safe to use the dog earlier (blinding) or later (I can still see him well) from personal feelings and used battery quality dependent.
The peculiarity of this collar for me was that there is no on / off switch. The on / off works on the situation of the battery pack. As a consequence, one can not even off the band spontaneously. Hide and seek is not with this band. The rationale for this aspect I explain further here, I would just point out. (See HP Manufacturer)
Despite the aforementioned reviews by me on this collar, it is best for our needs because:
very, very long burn time with standard batteries, easy to use, really waterproof, good to handle

I recommend without restrictions