Ecsson Technology Co., Limited, established in 2005, is a high-tech enterprise specialized in the R&D, Production and Sale of portable power supplies, solar chargers, solar waterproof bags and solar LED. We have the best technician team and the best product designers, and we keep cooperating with many laboratories of the colleges and universities. We have good accomplishment in the R&D of portable power supplies and solar chargers. Our portable power supplies are adapted to AC (110V-220V), USB ...