The native Israeli speaker says it below in the link. I would use an umlaut over the letter ä to describe a sound between ae (a and e merging as one). As a Spanish speaker, I don't think we have this vowel sound. The French and Germans do. This sounds sounds to me like the German ä. Another sound which perhaps is more from the throat ח like LoCH monster or the "cat vomiting a hairball" like how German pronounce Milch ...MilCH. In Spain, I encountered a few people who would pronounced the J like this. I think they might have been from the Canary Islands. I was intrigued by this sound in the Spanish language as I never before had encountered it. So it is possible that certain Spaniards and other people of the Latin world might be aware of this sound. In all honestly is not difficult to recreate. For some reason I find intriguing and fun.
I chose the jCH to represent ה.
I hope this helps someone!