-The ULTIMATE SPEED car charger has a separately switchable air ionizer, connected devices automatically use the maximum charging current. The device has an integrated fuse. -The nominal input voltage is 12 V, the output voltage is 5 V and the output current is 2× 2.1 A. The charger is made of acrylonitrile butadiene styrene. The dimensions are 12 × 7 × 4 cm and the weight is 80 g.