1. Eeyrnduy best portable usb battery is designed under the vigilance of our talented and professional designers.
2. When customized, the colorful graphics and innovative shapes will make this product a part of a creative marketing strategy.
3. It has good stretchable features. It has been tested in terms of stretch and recovery via such testing methods as ASTM D2594 and BS 4294.
4. This product is not prone to generate mold. Its moisture resistance property contributes to resisting the reaction between water and bacteria.
1. Shenzhen Chuangneng Ruiyuan Electronics CO.,LTD. is widely recognized by the industry. We have established our position and brand in the field of manufacturing . The quality of our best portable usb battery still keeps unsurpassed in China.
2. All testing reports are available for our mobile phone external battery .
3. At present, most of the bulk batteries series produced by us are original products in China. We always adhere to high-quality of Eeyrnduy brand products.