Son Misplaced iPod max headphones in PureGym Caversham road

A massive long shot, but my 16 year old son has misplaced his AirPod Maxes (white/silver) in the Caversham road PureGym.

Last seen in the changing room, so hopefully someone has seen them and can arrange for return :(

He is really upset about it, so if anyone finds some knackered looking ones - please let me know!

Thank you!