DS,6 Can't hear or won't listen?

[41notTrendy]

DS is in Yr 2. His teacher has suggested we get his hearing checked as she finds that sometimes he doesn't respond when she talks to him.
We find this, but generally when he's being asked to 1. tidy something up 2. turn off the tv 3. stop playing with xbox 4. get dressed/washed/shoes on. etc etc etc. .
He has had no speech or language difficulties and no-one has ever voiced a concern about his hearing. My DM even laughed when I told her, and reminded me that he can hear a conversation about babysitting/chocolate in quiet voices from the next room.
We suspect that he listens when he thinks it's interesting. BUT, there's that seed of doubt now, that maybe it's not just typical little boy behaviour and there is something wrong.
Anyone else got any experience of this?!

[Runoutofideas]

I think you are right to, OP. My dd1 (7) had grommets fitted at age 4 and it made a massive difference to her. I fear she may need another set now as she talks about her good ear and her bad ear. Also recently she was at a climbing birthday party and asked if she could go last so she could watch the others first, as she had no idea what the instructor had said... She does well at school though and has no behavioural issues.
It is also worth bearing in mind the background noise in a classroom is significantly higher than a normal household. My dd struggles to filter the sounds, so can't hear the teacher over the general hubbub. She's forever asking her friends what to do next!