the Volume is 2000mah, Many Colors Available. This Power Bank has a Sleek Aluminum Style with an Acrylic Finish That Gives Your Logo an Upscale Feel. the Brushed Aluminum Keeps the Power Bank Rugged & Ready to Go for All Day Wear & Tear. Big Design Area That Lets Your Logo Stand Out From the Crowd. Capacity Available. 1200mah,1500 Mah,1800mah,2000 Mah,2200mah,2600mah,5600mah Etc.