The Vtech AC adaptor 120v AC to 9v DC 300mA Toy Transformer is a compact and lightweight power supply designed by VTech. This transformer features adjustable gain and an on/off switch, making it ideal for powering various electronic devices. Made in China, this product ensures reliable 9v DC power output for your toys and other small electronic devices. With the VTech brand guaranteeing quality, this power supply is a versatile and essential accessory for your tech-savvy lifestyle.