1. Neck and dual-use, colorful care, colorful wrinkles and beautiful neck, red/blue/purple light lines, vibration massage, 45 constant temperature introduction.2. Colorful rejuvenation, sonic vibration, deep cleaning, nourishing and introducing, positive and negative ions, four modes, three intensity adjustments, constant temperature hot compress.3. Blu-ray mode: Inhibit acne, purify and pores; Red light mode: accelerate circulation, and dilute pigmentation; Purple light pattern: the alternation of cell oxidation, calm , balance and tighten .Product Name: -current Three-gear Adjustable Constant Temperature Neck Beauty InstrumentNet weight: 0.085KGRated voltage: 3.7VRated current: 500MARated power: 2WBuilt-in battery capacity: 450mAInput: 5V/1A USB chargingcolor:WhiteMaterial:ABSsize:14 x 9 x 3.8cmPackage Contents:1 x Neck beauty instrument1 x USB charging cable1 x English manualOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.