GTD Audio G787L UHF Diversity Wireless Microphone Lapel Lavaliere Mic https://www.amazon.com/dp/B00PQZCB4C/ref=cm_sw_r_cp_apa_i_Ac26AbFRYJRQ6

The also offer an upgraded headset mic that works better than the ones that come in the kit.

https://gtdaudio.net/gtd-audio-double-ear-hood-microphone-mic-beige.html

Online search because they might be cheaper with other vendors