Pin: the gauge input: 100 v - 100 vac & have spent 1 A output: 2.1 A 5 VDC or 5 VDC optional advantages: 1. The blue beauty color piece according to the corporate's trademark LOGO color customization, better color expresses the enterprise culture. 2. The applicable products: tablet, iPhone, iPod, HTC, SONY, samsung, millet, huawei, zte a variety of mobile phones.