Petzl Croll Size:Small You can also set up

You can also set up your 10S to pair with up to two mobile phones for convenient hands-free calling

So speed regulation is very easy

aim - and fire

Used together with Futura Hand and Futura Foot it's the best support  to ascend a rope with the "ROPE WALKING SYSTEM" (as if climbing a ladder)

Radio region: worldwide

Petzl Croll Size:Small You can also set upChest rope clamp Designed for rope ascents, the CROLL ventral rope clamp is simple to use, thanks to its pinch opening system, which is totally integrated in the clamp to avoid any involuntary snagging. The attachment holes ensure efficient positioning during ascents. It is available in two versions to adapt to different rope diameters.