product features: 1. Red light heating function: can heat up quickly, 2. Mesh bag design, you can put the mugwort bag into it and perform mugwort hot compress. 3. Vibration massage function: three levels of adjustable vibration massage, simulated human massage. 4. Heating and massage two-in-one, 3 levels of heating, and 3 vibration massage modes to choose from. Equipped with digital display controller, touch screen button design, and the panel displays temperature and power. The intimate Nylon Buckle is designed to adjust the wearing, angle and tightness at . Turn on the anti-accidental touch mode to prevent accidentally touching the keys while using the product. color: gray Material: diving material Package Contents: 1 x belt warmer 1 x USB charging cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.