Shenzhen GuangXia Technology Co.,Ltd is an Professional manufacturer specialized in developing, researching and selling Power Bank,Portable Mobile Charger,Rechargeable External Battery ,Mobile Battery Backup,USB Data Cable,Mobile Phone Case Cover,etc mobile phone laptop degital device accessories; Meanwhile we are an experienced international Merchant since 1999 ,offer your products service provider specializing in foreign and domestic sourcing, manufacturing, assembly and distribution by Geographical advantages southern China Shenzhen called factory of world .