LED Neck Massager Anti Wrinkles Neck Beauty Lifting Double Chin Removal Product Information Product Name: Photonic neck beauty instrument Charging method: TYPE-C interface Rated power: 4W Product size: 124*86*36mm Output voltage: 3.7V Product list: 1* product, 1* massage head, 1* data cable, 1* manual HOW TO USE 1. Cleaning: Clean the parts and products that need care before using the product 2. Skin care products: apply an appropriate amount of skin care product essence and lotion 3. Massage: You can choose the massage cover to massage 4. Selection: Long press for two seconds to power on and short press to select the desired mode 5. Nursing: from outside to inside, from bottom to top to help skin care products absorb Note Please allow 2-3 cm difference due to manual measurement. Besides different computers display colors differently, the color of the actual item may vary slightly from the below images, thanks for your understanding(1 inch = 2.54 cm)