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 and tablet PC、 etc.
Dimensions: 2.24 in x 1.54 in x 0.83 in (5.7 cm x 3.9 cm x 2.1 cm) Weight: 1.31 oz (37 g)