Here is Cat-Eye's web site description of the Enduro 8

(http://www.cateye.com/en/product_detail/254

And here is Nashbar's description of the Mity 8 (the Mity 8 is identical to the Enduro 8 but with a thinner connection wire):

http://www.nashbar.com/bikes/Product...0_10000_202553

I have both models on different bikes and they are as bullet-proof and reliable as anything you can get.