Feature: 1. [Multi Directional] Multi directional stimulation, enjoy massage, multi directional stimulation massage, comfortable enjoyment. 2. [Vibration Motor] Linear vibration motor, through continuous vibration, plays the role of massage the chest. 3. [Intelligent One Key Control] Intelligent one key control, you can use it anytime, anywhere for chest massage. Low noise is more enjoyable, with a slight vibration around 20 decibels, which does not affect others. 4. [No Steel Rings] The body of the underwear without steel rings can be worn as a normal bra, which is very comfortable to wear. 5. [Breathable] Refreshing, breathable, not stuffy and sweaty, and you can wear it refreshingly in summer without fear of stuffiness. Specification: Item Type: Breast Massage Bra Material: Nylon Rated Voltage: 5V Rated Power: 3W Power Supply Mode: Lithium Battery Battery Capacity: 1200mAh (Ship with Inbuilt Battery) People who should not use this product: 1) Patients with malignant tumors 2) Patients with acute diseases such as heart patients. 3) Pregnant women or those who are currently in menstruation. 4) Children or those who are unwell after undergoing surgery, and those who are frail and sick.. Package List: 1 x Breast Massage Bra (Ship with Inbuilt Battery)1 x USB Charging Cable Note: 1) Do not disassemble or modify this product at will, otherwise it will cause damage to the smart bra or circuit failure.2) Do not use in bathing or showering.3) Please don't hit the smart bra with force or other things, otherwise it will cause internal damage.4) Do not touch the product with acute objects, otherwise it will damage the appearance of the product.5) Do not place this product in a high temperature environment, otherwise the environmentally friendly silica gel of this product will dissolve and break.6) It should not exceed 15 minutes for the first use. Actual use depends on individual physical needs.7) If you have health concerns, please consult your doctor before using this product.8) Long‑term use will easily cause the product to overheat and shorten its life. If this happens, please stop using it until the product cools down.9) Do not use it before going to bed, because this product has a stimulating effect and will continue to fall asleep.10) This product is a nonprofessional medicine device and cannot be used as a substitute for medication.11) Do not use this product if you have difficulty moving due to physical defects.