Temperature range (the temperature inside the car): 0~40'C; Input voltage: DC 12V; Output voltage: DC 5V; Special design port with voltage display; Perfect for MP3, MP4, camera, smartphone, Tablet PC, etc.
Dimensions: 2.24 in x 1.77 in x 0.87 in (5.7 cm x 4.5 cm x 2.2 cm) Weight: 1.34 oz (38 g)