.Operated by 4 x "AA" LR6 Alkaline batteries .Support USB plug, 1.5 meters .Recharge in any situation for supporting USB plug + alternative manners : 4 x 1.5V batteries and Mini USB .Use No.10 staple .Stapling up to 10 sheets .Small & Portable electric stapler .Size : 122 x 38 x 61 mm