Safety and low temperature: 3.6V safety voltage, no need to plug in 110V power supply, lower heating temperature and heat insulation glue outlet for more safety when children make artwork Cordless and Rechargeable: Hot glue gun powered by lithium battery, easily charged by USB devices such as laptop, power bank, adapter, etc. Cordless portable design allows you to work freely anywhere Battery and battery life2200mAh lithium-ion battery provides 2 hours of heating work after fully charged Unique design off 10 mins tension When kids finish gluing work and focus on others, this feature would be a good choice High Quality: Standard size 7mm glue sticks are readily available. odorless and strong viscosity Product color: pink Package quantity: one set