The Volas Vitality™ MagicPro 2.0 is for someone who wants a U-shaped neck wearable at home and accepts a single default variant.
It is a weaker fit if you need a listed neck-size range, published battery specs, or a medical treatment. Look at the photos and the home-comfort sentence. Ignore unverified outcome claims for the buying decision.
See the Volas Vitality MagicPro 2.0.