For Telex 750, easy swap out with ship headset and then you swap it back
YDYBZB Earpads Replacement Foam Ear Pads for TELEX AIRMAN 750 Aviation Headset Pad Cushion Cups Cover Headphone Repair Parts
https://www.amazon.com/dp/B06XJLZHQW/ref=cm_sw_r_cp_apa_i_ZYPRCb13NZ7ZC
24 Pack Mini Size Microphone...
https://www.amazon.com/dp/B073WVX78P?ref=ppx_pop_mob_ap_share