The Porodo Lifestyle Portable Handheld Super Duster with Vacuum Function appears to be a versatile handheld device designed for cleaning and dust removal.

Low-Noise Brushless Motor:  The device is equipped with a brushless motor, which tends to be quieter and more energy-efficient compared to traditional brushed motors. This feature ensures a lower noise level during operation.

Speed Levels: Porodo Lifestyle Portable Handheld Super Duster With Vacuum Function offers three different speed levels for its operation. You can likely choose the appropriate speed setting depending on the task and the level of dust removal needed. The options are 50k, 70k, and 90k speed levels, indicating the speed of the airflow or vacuum function.

7500mAh Built-in Battery:  The device is powered by a 7500mAh built-in rechargeable battery. This provides the necessary power for the handheld duster and vacuum function without the need for constant replacement of batteries.

Efficient Dust Removal: this device is designed for efficient dust removal, making it ideal for cleaning tasks where dust and debris need to be quickly and effectively removed.

Working Time:  With a 7500mAh battery, the device offers a working time of approximately 30 minutes on a single charge. This duration may vary depending on the speed level and the intensity of use.

3 Speed Levels:  As mentioned earlier, the device offers three different speed levels. These levels can be adjusted to match the specific cleaning needs of various surfaces or objects.

In summary, the Porodo Lifestyle Portable Handheld Super Duster with Vacuum Function is a versatile and portable cleaning device that combines a duster and a vacuum function. It features a low-noise brushless motor, multiple speed levels, a large 7500mAh built-in battery, and is designed for efficient dust removal. The three speed levels provide flexibility for different cleaning tasks, and the 30-minute working time should be sufficient for most cleaning jobs.