Nap alarm, Anti Drowsy Alarm, Nap Zapper, Drive Alert Master. It can avoid the driver from sleeping. Safe for long drive and drive at night. It is guardian angel for drivers. Inner packing: Blister card packing Outer packing: Carton dimensions: 50x 27 x 27cm Qty/carton: 200pcs N.W. 3.85kg G.W. 4.6kg