Search:

CTEK is the good choice. It is an independent cold-proof bike battery charger.

I just have one with the sunshield. You can view on Theriderbase to find the good one.

Helmet bluetooth is not only convenient, but it is also safe. Hope you can find the good one.

Try to take one and have more experiences of it. Good luck to you.

Have you found the suitable scanner for your iphone?