The Vintage Cap Lamp Headlight Model No. 399A is a retro-style headlamp designed for camping, hiking, or any outdoor activity. This black plastic headlamp features a single light with a power source of 3 batteries, providing a bright beam of light with a voltage of 3.6 or 3.8 Volts. The Cap Lamp brand is known for its durability and reliability, making this headlamp a practical and stylish choice for adventurers looking for a reliable lighting solution.