How do I create a String from a leaderstat Inventory?

So what I'm trying to do is detect a certain item in a leaderstats inventory (sound code) to then play said sound to the whole server.

Ive tried to search for it in leaderstats but I don't know if i wrote my code wrong or this isn't the way to do it

local players = game:GetService("Players")

local stats = {
	{"Cash", 20000},
	{"Items", 0},
	{"Inventory", nil} --Right here
}

players.PlayerAdded:Connect(function(player)
	local folder = Instance.new("Folder")
	folder.Name = "leaderstats"
	folder.Parent = player
	for i,v in pairs(stats) do
		local statType = "IntValue"
		local name = v[1]
		local value = v[2]
		if type(value) == "boolean" then
			statType = "BoolValue"
		elseif type(value) == "string" then
			statType = "StringValue"
		elseif value == nil then
			statType = "Folder"
		end
		local stat = Instance.new(statType)
		stat.Name = name
		if value then stat.Value = value end
		stat.Parent = folder
	end
end)

Just to clarify this script is not my attempt to find the item