Product Features: 1. Red light heating function: Heats up quickly. 2. Mesh bag design: Allows you to insert a herbal bag for hot compress therapy. 3. Vibration massage function: Three adjustable intensity levels, simulating manual massage. 4. Dual heating and massage functions: 3 heating levels and 3 vibration modes to choose from. Equipped with a digital display controller and touch screen buttons; the panel shows temperature and power level. Features an adjustable nylon buckle for customizable fit, angle, and tightness. Includes an anti-slip design and accidental touch prevention mode to avoid unintended button presses during use. Color: Gray Material: Neoprene Package Contents: 1 x Belt Warmer, 1 x USB Charging Cable Note: Other items not included. Slight color variations may occur due to lighting and screen display differences. Measurement error allowance: +/- 1-3 cm.