Properties: Other Place of Origin: Guangdong, China (Mainland) Brand Name: proesmoker Model Number: EVOD Color: Various colors Working voltage: 3.7V Weight: 300g Resistance: 1.8/2.2/2.5ohm Length: 129/1544/154mm Capacity: 650/900/1100mah Charging time: 1-2 hours Standard Manual Battery: 500 puffs http://www.proesmoker.com