Used once. Purchased about 2 months ago. The following is taken from the manufacturer's product page: Equipped with Power Conversion Quick Charge technology, it supports fast charging via USB-C PD 30W x 1 port and USB-A QC 18W x 1 port. From business people who use laptops in their cars for long periods to game enthusiasts who play smartphones, tablets, and game consoles, you can enjoy worry-free drives, car camping, and outdoor activities without worrying about running out of battery. "Emergency power supply for power outages" It can convert the DC12V of a car battery to household AC100V, making it an ideal emergency backup power supply for not only car trips and outdoor activities but also during natural disasters such as earthquakes and typhoons. "6 Protection Functions + Aluminum Casing + V0 Fireproof Material" It has 6 protection functions: overload protection, short circuit protection, overheat protection, low voltage protection, overvoltage protection, and reverse connection protection. Furthermore, it uses a heat-dissipating aluminum alloy casing and V0-rated fireproof material, combining safety and durability. Product Specifications Sound Pressure Level: 300 Watts Standby Power Cut-off: 85-90% Output Voltage: 100 Volts (AC) Peak Output Power: 300 Watts Electrical Output Waveform: Modified Sine Wave ■ When purchasing ※ No need to ask for permission, instant purchase is OK. ※ Please understand that this is a used item as it has been in someone else's possession. ※ There is no warranty. ※ If you don't say anything, please respond promptly after receiving the product. ※ I will be very uneasy if there is no evaluation without any communication. ※ Changes to the site or shipping methods cannot be made. ※ Please specify the date and time yourself. ※ Direct transactions are not possible. ※ I will not answer questions that are described in the product description, so please read the product description carefully and understand it before purchasing. ※ Comments will be deleted after 1 hour after replying, excluding late at night. Cannot ship on weekends and holidays.