Function: 1. Unique wireless design,the ultimate high-end portable! Relieve fatigue and protect eyesight. 2. Lighter: Net weight is 33% lighter than previous generation,light and compact. 3. More portable: 180°full folding integrated design 4. More quiet: 60dB lower than previous generation from 63dB 5. Warmer: Far-infrared heat compresses and promotes blood circulation around the eyes. 6. More fit: Improved eye ergonomic design to better fit the eye points. 7. More lasting: high-efficiency lithium battery,longer battery life,and worry-free travel. Specifications: Parameters: 5V 1A 5W Inner means: 22.8*13.8*12.1cm Carton size: 75*47.5*27.5cm N.W: 0.35KG G.W: 0.6KG PCS/CTN: 20