Started TLP Cycle 1 yesterday. He is doing the advanced schedule of 1 hour/day which will end in 5 weeks. إن شاء الله. For this, I have purchased Sennheiser HD-558 headphones from Amazon. This is not the bone conduction sort - too expensive for us as at the moment.
Thank you Jabeen for your help on this! Jazakallahu khayran.