Genuine leather 4,000 mah ul certified power bank

Fashionably beautiful in its genuine leather sleeve, the t9939 ul certified nathan power bank packs some serious power to charge your electronic device with its 4,000 mah ul certified lithium polymer rechargeable battery though its single usb dc 5v/1a output port. With a led digital battery indicator, the spector & co. Original that lets you know when it needs a recharge. More power to you!