Features: Transform your battery into an easy carry power station with this multifunction power inverter, converting 21V to 220V for reliable power on the go. Featuring an intelligent chip for automatic voltage recognition and overload protection, this inverter ensures a safe and stable power supply for various devices. Suitable for international travel, business professionals, students abroad, and anyone needing to use appliances from different countries. Ideal for use in hotels, airports, cafes, at home, and during overseas trips, providing convenient access to power wherever you are. Its lightweight design makes it easy to carry, while the current display keeps you informed of power usage, making it an essential accessory for modern adventurers. Specifications: Component: metal + ABS Type: multiple options Size: about 9.6 x 9.6 x 6 cm / 4 x 4 x 2 inches Package Includes: 1 x Voltage Converter Adapter Note: Please allow 1 to 3 cm error due to manual measurement. Please ensure you do not mind before purchasing. Due to differences between monitor displays, the picture may not reflect the actual color of the item.