Set of two blue air dusters with two 21V batteries and a charger. - Batteries: Includes two 21V batteries - Charger: Includes a charger - Design: Blue-handled air duster - Model: Set of two air dusters Good for blowing away water droplets from cars. Especially suitable for removing water droplets from the fine mesh parts of the front. Each unit has only been tested for operation. Thank you for looking.