small volume, light weight and portable. CCC,CE,ISO9000 Certificated Power Adaptor ( EU, UK, USA and Australia type)Input voltage: 100V-240VOutput voltage: 3V/5VFrequency: 50/60HzCurrent: 500MA/1Awith 1.2m wire ( wire length could be according to clients' requirement)with short circuit, overtaked voltage and current protecting device inside of product