Features1FUNCTION: Warm breastfeeding massager can solve most breastfeeding problems such as blockage, insufficient breastmilk, uncomfortable pumping. Improves output and saves time. 2HEATING AND VIBRATION: Two in one warming and vibration, can be used with or without vibration, or without heating with vibration. Relieves breast pressure. 3UNIVERSAL: Universal massager for any size and shape of breast, easier to use and more relaxing than hand massage, replenishes increased breast milk. 4LONG LASTING: This vibrating heated breastfeeding massager charges for 5 hours and lasts 4 hours. Can be massaged 8 times individually for half an hour at a time. 5GIFT: You can give this product that helps massage your breasts to the postpartum mothers around you to make their breastfeeding journey easier and more enjoyable.SpecificationItem Type: Breastfeeding massagerMaterial: TPRProduct size: Length: Approx. 9cm / 3.5inWidth: Approx. 7cm / 2.8inHeight: Approx. 3cm / 1.2in (manual measurement, there will be 0-0.5cm error)Function: Vibration, heatingBattery Type: Lithium battery (shipped with built in battery)Battery Capacity: 1500 mACharging Time: 5HUse Time: 4H How To Use: 1. Low heat start, if you need more heat, you can switch to high heat.2. Massage pads can be placed in different positions of the breast.3. To avoid burns, heating time should not exceed 10 minutes.4. Press and hold the "heat button" for 2 seconds, open, close. Short press to switch between 3 heating modes. Green light indicates low temperature heating; blue for medium temperature heating; red indicates high temperature heating.5. Long press the "massage button" for 2 seconds, open, close. Short press to switch between 5 massage modes.6. Short press the "massage level adjustment key" to adjust the level of different massage, each massage mode has 5 gears.7. Heating and level adjustment indicator light red when charging. Full charge shows green. When the battery is low, the red light will flash.8. After 30 minutes of use, automatically shut down. Package List1 x Massager 1 x Charging Line 1 x Instruction Manual