1.USB Charge,1200mAh Lithium battery inside,2.5h worrking time
2.Material:ABS shell,asjustable buckle
3. Durable ABS shell,with LCD indicator,elastic belt
4. 4 modes of air compression massage function combined with heating
5. Has a exquisite design,light weight, can be folded at 180 degrees, easy to carry.
6. Help to relieve the fatigue of eyes and boost the blood circulation of eyes areas.