Fitrx Cordless Shiatsu Shoulder, Back, and Neck Massager with Heat

Walmart

U-shaped neck massager, Includes heat function, General form factor

Shiatsu Neck & Shoulder Massager

Snailax

General product category (U-shaped neck/shoulder massager), Similar control panel layout and button symbols, Heat function indicated by red glow, matching red interior of source, Overall form factor for neck and shoulders

Snailax Cordless Heated Shiatsu Back and Neck Massager

Snailax

General U-shape form factor, Electric neck and shoulder massager with heat, Light color (light grey/green) matches source, Massage nodes visible