Established in 1990, Tekfun Co., Ltd. is specialized in the export and manufacture of various Portable Power Bank. Taking advantage of our own professional antenna chamber, high frequency network analyzer equipment, rich experienced R&D and well trained production, we win great reputation from the world wide customers. Nowadays, we design more Portable Power Bank to meet the market demand. Our products are widely used in GSM/CDMA/TDMA, telecom, wireless Lan, GPS and DVBT devices, etc. Your best Portable Power Bank solution partner is Tekfun. Our strict QC procedure, rapid shipment service and lowest cost structure can always support your projects to be successful. We welcome any custom-made specification. Please contact us any time for your OEM/ODM projects.