Powered by a lithium ion battery, this mini glue gun charges via USB connection. Can be charged with a wall adapter, portable power bank or computer. (Charger not included.) Fully charged, it lasts up to 75 minutes. LED status indicator is blue when it is on, red when charging and green when fully charged. Features an on/off switch and insulated nozzle for safety. Uses mini, 5/16" diameter glue sticks or rolls. 120 volts, 60 watts.