Question about Philips OneBlade Pro

I bought the OneBlade Pro at the beginning of November 2018 and use it once a week to trim my beard. Has fully met my expectations as far as trimming and cutting goes. I've dropped the thing a few times, the razor blade and trimming head have come off, but as they are very light, nothing has ever happened. I didn't find the trimming head on the Philips site, only the razor blades. But the trimming head has no mechanical function, it only limits the length of the beard.