【3 Levels Heating】 Supports 3 levels of adjustable heating mode(Green Light-- Low Temperature, Blue Light-- Medium Temperature, Red Light- High Temperature). Start with low heat and place the lactation massager on different positions of breast, DO NOT use heat for more than 10min to avoid burns. 【With Soft Silicone Pad】 The lactation massager has a soft silicone pad, comfortable to use and suitable for breasts of any size and shape, more effective lactation support than hand massage. A good helper for your breastfeeding. 【Built-in Rechargeable Battery】 Built-in rechargeable lithium battery that can be charged via magnetic charging port conveniently. And the battery will last about eight 30mins cycles(total 240mins). Please DO NOT use the lactation massager while charging. Specifications: Heating Mode: 3 Vibration Mode: 5 Vibration Intensity: 5 levels Rated Voltage: 3.7V Rated Power: 2.8W Charging: 5V 1A Charging Time: 5H Item Size: 8.9 * 7 * 3cm/ 3.5 * 2.8 * 1.2in Item Weight: 100g/ 3.5oz Note: The lactation massager is not waterproof. Please wipe the product with wipe and let it dry naturally after use. Make sure to avoid direct sunlight. Packing List: 1 * Lactation Massager 1 * Charging Cable 1 * Users Manual(English)