Hign-concerned Chemical:NoneBattery:built-inModel Number:Hair Care Head Massage CombItem Type:Hair Loss ProductQuantity:Massage Comb Red LightBrand Name:HailicareNumber of Pieces:One UnitOrigin:Mainland ChinaCertification:CEFeatures: 1. 3 levels of heating and 2 levels of vibration massage, which is more comfortable to massage the scalp, promote scalp blood circulation and prevent hair loss. 2. Red light waves irradiate the scalp directly to awaken healthy hair roots. 3. The massage comb has its own display screen, which allows you to clearly see the heating temperature and it is safer to use without burning your hair. 4. It has 4000mah battery, long battery life can be used everywhere. Specifications: Material: ABS Color: red, white (optional) Battery capacity: 4000mah Rated power: 28W Charging voltage: 5V 2A Temperature: 160-200 Vibration mode: two gears Charging time: about 2.5-3 hours Net weight: 284g Product size: 19.5*4.5*6.3cm Note: 1. It cannot be used while charging 2. After turning on, it will start to heat up after about 2 minutes 3. If you use a thermometer to detect, you can only detect the surface temperature (the product has anti-scalding protection technology, and the surface temperature is different from the actual temperature). Adjust to the first gear of 160, the surface temperature can reach about 51 in about 4 minutes, and the surface temperature can reach about 110 in about 15 minutes. The longer the heating time, the higher the heating temperature 4. If you use a thermal imager to detect, it can reach about 160 in about 12 minutes Package Included Hair straightener massage comb*1 Type-c charging cable*1 English instruction manual*1