In August 2016 PANArt introduced the Hang® Bal. The instrument combines a modified Hang top shell with a Gubal bottom shell that has a Gu opening in the Gugel. It is worn with a shoulder strap which enables the player to move around freely with the instrument.
Currently there isn't much information about the Hang Bal on the Internet.
Here you will find information about the Hang Bal on PANArt's website.
You can watch videos with the Hang Bal in a Playlist on PANArt's YouTube channel. Listening to these recordings you need good speakers or headphones, because the little loudspeakers in smartphones, tablets or notebooks and many earphones don't play back the deep bass sounds of the Hang Bal's air resonance: