Shenzhen Sungzu Technology Co., Ltd. is a hi-tech enterprise focusing on the research, design, production and marketing of new solar products and portable power banks. We have our own technology research team. Our main products are portable backup power banks and solar chargers, which are completely compatible with worldwide brand mobile devices such as iPad/iPhone series, smart phones of Samsung, HTC, blackberry and tablet PCs, traditional cell phones, and digital devices as digital ...