Vaetrix branded lithium ion power bank rated at 2200mA with UL Listing. Micro B DC 5V Input for charging and USB A port for Output. Includes 1' Cable - USB A to Micro B. Not approved for use with Intrinsically Safe rated products. Will powerup most Vaetrix products for long periods of time (months) depending on usage. Simply recharge pack when depleted. This is a great backup source or alternative to battery in non-hazardous environments.