Charging method: USB, built-in battery 500mah in the package: charging cable, manual, product size: 89*47*120mm, Features. green light (CLEAN) low-grade vibration, brightening mode (no heat), clearing deep pores of waste, shrink pores Red light (EMS): mid-range vibration, care mode (no heat) into the skin care products, enhance skin activity, skin whitening and rejuvenation, lighten wrinkles Blue light (HOT): high-frequency vibration, warm moisturizing mode (with heat) warm massage to promote circulation, lifting and tightening, improve skin elasticity How to use it? Step 1. Clean your face and neck at first. Step 2. Apply appropriate skin care products(not too much) on your neck and face. Step 3. Select preferred mode. Step 4. Start from the base of the neck, owly move the massage head upwards towards the chin, and jawline, all the way up to the forehead. Step 5. It's recommended to use 15mins per day during skin care routines. Double Chin Removal, Lead in nutrition. Dolphin tail type, exquisite and novel but classic. Neck lifting,skin tighten.Arc-shaped cling to neck and body line. This massager creates 'heat' send to every inch neck skin Clean the trash deep in the pores to achieve the effect of shrinking pores, diminishing spots and acne, and solving dull and dull skin.