Features: 1. Neck beauty device that can be used on both the neck and face to effectively lift and firm the skin, reduce facial wrinkles, fine lines, and necklines, and is designed to give you a swan neck. 2. Multi-effect skin care: color light rejuvenation and sonic vibration and deep cleaning and nourishing introduction and positive and negative ions and 45 constant temperature hot compress to make your skin smooth and firm. 3. Four modes, three intensity adjustments, accelerate blood circulation, promote collagen production, dredge meridians, shrink pores, and rejuvenate the skin. 4. Dolphin bionic design, 160 around the neck, fully fits the neck curve, and can deeply touch the neck skin. 5. Positive and negative ions are efficiently introduced into nutrients to improve the absorption efficiency of nutrients by the skin. When used with neck cream and neck mask, the effect is doubled. Specifications: Material: ABS Color: White or Green or Black Rated voltage: 3.7V Rated current: 500MA Rated power: 2W Built-in battery capacity: 450mAh Power input: 5V or 1A Product net weight: 0.085KG Product size: 14x9x3.8CM Packing size: 16.8x11.8x5.2CM Packing includes: 1x Neck beauty device 1x USB Charging Cable 1x English User Manual