Product materials: ABS    Color:Red/White/Black    Product weight:45g    Product size: 38x19x80mm    Battery capacity:  400mAh  The number of negative ions released:20million /cm3    QTY:60pcs    Carton Box Size:  48x35x21cm  Net/Gross Weight: 8.7kg/9.1kg    Features:  1. Can produce 20 million negative ions  2. Can remove air pollution  3. Multifunctional USB hanging neck  4. Suit for car device and portable  5. Fast Charging