Installing Touch Light Switch
Well, your wiring colors (or should I say colours), suggest you are not in the US, so I'll preface my answer with this: I have very little knowledge of non-US wiring standards. It looks like the current UK wire color scheme, though, with brown as a single-phase live (240V), blue as a neutral, and the yellow/green as a ground.

That aside, you shouldn't have too much trouble with this wiring. I am not entirely sure what the terminal marked "N" and "LOOP" is for since I wouldn't expect a 3-way traveler to go to a terminal marked as a neutral. Anyway, it doesn't appear relevant anyway. I might just be for an illuminated switch.

To simply replace the current switch, you would connect the wires currently on "COM" to "L" on the new switch and the wires currently on "L1" to the new "L1."