chuckwalla

The little bittboy -https://pocket-go.com/collections/frontpage/products/bittboy-v3-5
Stoneagegamer also sells them

Nice. Is it as squeaky as the previous ones? 

I don't have any other handheld to compare it against but the speakers are tiny and basically 'tinny" sounding as you would expect.

But it does play the early Sega console games very well.