Using temperature range (the temperature inside the car): 0~40'C; Input voltage: DC 12V; Output voltage: DC 5V; Specially designed use port with voltage display; Perfect for MP3, MP4, camera, smartphone, tablet PC, etc.
Dimensions: 2.44 in x 1.46 in x 0.83 in (6.2 cm x 3.7 cm x 2.1 cm) Weight: 1.35 oz (38 g)