Features: 1. Motivated by solar power or battery. 2. Solar board size is:55X51cm ,car size:21cm 3. Excellent off-highway performance. 4. Top speed can reach 2-3m/s and Maximum gradability can reach 30° 5. Voltage: 2.5V, Current: 150mA Length: 210mm Width:80mm Power: solar power or battery Packing : 72 pcs/ctn China supplier: Email : wayimodel@hotmail.com Skype ID : wayimodel *** MSN ID : wayimodel@hotmail.com http://wayimodel.en.ecplaza.net