The "2 IN 1 Lens Universal Clip 37mm Mobile Phone Lens" appears to be a camera accessory designed to enhance the capabilities of the camera on your mobile phone, particularly for iPhones and Android devices. Here's a breakdown of the features mentioned in the description:

1. 2-in-1 Lens: This accessory includes two different types of lenses in one package. These lenses are designed to be clipped onto your smartphone's camera lens, allowing you to switch between them as needed.

2. 37mm Clip: The lens attachment likely has a 37mm clip that can be attached to your phone's camera. This clip is designed to securely hold the lenses in place over your phone's existing camera lens.

3. 0.45x Super Wide-Angle Lens: The first lens mentioned is a super wide-angle lens with a 0.45x magnification factor. Wide-angle lenses allow you to capture a broader field of view, making them great for landscape shots, group photos, or capturing more of your surroundings in a single frame.

4. 49uv Macro HD Lens: The second lens is a macro HD lens. Macro lenses are designed for close-up photography, allowing you to capture small details with great clarity. The "49uv" specification may refer to the diameter or size of the lens.

5. Compatibility: The description suggests that these lenses are compatible with both iPhone and Android smartphones. They are likely designed to fit a variety of phone models with a suitable clip mechanism.

Keep in mind that the quality and performance of these lenses can vary based on the brand and specific product. It's a good idea to read user reviews and check the reputation of the manufacturer before making a purchase to ensure that the lenses meet your expectations in terms of image quality and ease of use. Additionally, make sure that the clip and lenses are compatible with your specific phone model.