Features: Transform your battery into a Easy Carry power station with this Multifunction Power Inverters, converting 21V to 220V for reliable power travel . Featuring intelligent chip for automatic Voltages recognition and overloading Protections , this Inverters ensures safe and stable power supply across various devices. Suitable for international travel , business professional , students abroad, and anyone needing to use appliances from different countries. Perfect for use in hotel, airports, cafes, and at house , as well as during overseas trip, providing convenient access to power wherever you . Its lightweight and designs makes it easy to carry, while this current display let you informes of power usage, making it essential accessory for modern adventurers. Specifications: Component : metal+ABS Type: multiple for option Size: about 9.6x9.6x6cm/4x4x2inch Note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the differences between different monitors, the picture may not reflect the actual colorful of the item. Package includes: 1xVoltage Converter Adapter