Bobbles off knitwear! Tool recommendations please!

[Doughnut100]

Just that - I see adverts for various devices to get bobbles off knitwear. Wouldn't want to use something that could damage it. Not sure which ones actually work. Does anyone have one they swear by?

The Philips fabric shaver - one of my all time favourite gadgets (and unbelievably satisfying hearing the bobbles come off)

I’ve had two that worked badly; batteries slipping out of place. So I just spread the jumper on the ironing board and use an ordinary box razor. Works fine; just takes a little longer.

I just use a Brora cashmere comb

Thanks all! @Teaandscone do you mean two of the Phillips ones or just two different ones?