Feature: 1. ADJUSTABLE SUCTION: You can adjust the strength according to your needs. The strong suction can lift and straighten the nipples very well. 2. MULTIPLE SIZES AVAILABLE: Three sizes available, six nipple covers to relax and tighten nipples during massage and improve elasticity. 3. RELAXING NIPPLES: This electric nipple corrector requires only 20 to 30 minutes of use per session, eliminating the need for long term daily wear. It satisfies the need to massage, relax and lift the nipples. 4. SAFE AND EFFECTIVE: Regular manual nipple correctors require prolonged nipple stretching, which can easily lead to nipple clogging and inflammation. Electric nipple corrector can avoid these problems. 5. SUITABLE FOR: For nipple invagination, flat nipples, short nipples, broken nipples, etc. Suitable for young women, postpartum women or men with inverted nipples. How to Use: Long press the on, off key to switch on, short press to switch modes, + and ? keys to adjust gears, long press the on, off key again to switch off Specification: Item Type: Electric Nipple Corrector Material: ABS Battery Type: Lithium ion battery (shipped with built in battery) Battery Capacity: 1500mah Suitable for nipple inversion, flat, short, broken Characteristics: Low noise, touch LED display Package List: 1 x Nipple Corrector 1 x USB Charging Cable 1 x Instruction Manual 6 x Nipple Cover 1 x Tube