Similar idea:
Buy it for life nose hair clippers
There are other versions, but this is the basic idea.
Two parts.
No batteries.
I've had a pair for 15 years, and they still work like new.
Get one of these twist trimmers. I've had mine for years and it still works well.
I use something like this. Recommending in case you don't want to deal with batteries.
I strongly encourage you to get one of these: https://www.amazon.com/dp/B000EBFJXS/ref=cm_sw_su_dp
Literally a life changer for me. I used to just rip them out like a barbarian, and then be like, "Why is my nose filled with pain?" the next day as in-grown hairs set in. This guy does the job in 2 seconds, and no batteries required.
This guy works super well, just got one a few days ago.
I use this too and love it. Amazon link.
Electic? Nope, but I can recommend something that will do a good job and last.
this thing works for my nose. never tried it for my ears. takes about 5 seconds per nostril. will live through the apocalypse.
+1 for the Groommate, but here is a US centric link that is a lot cheaper: Groom Mate Platinum XL Nose & Ear Hair Trimmer https://www.amazon.com/dp/B000EBFJXS/ref=cm_sw_r_cp_api_i_vR8rFbCRT8EQ4
This one will last a lifetime.
This is a way better option. Painless, no batteries, buy it for life quality.
http://www.amazon.com/Groom-Mate-Platinum-Nose-Trimmer/dp/B000EBFJXS
Groom Mate Platinum XL nose hair trimmer
Two machined pieces of stainless steel that you can disassemble, clean, and re-lube. Can't get much more BIFL than that (and a lifetime warranty).
It's not a part of some trimmer package, but you can't go wrong with it.