1. Make your short-sighted camera/phone into a Telephoto.
2. Suitable for most cameras and mobile phones.
3. Fit: Watch Game, Travel, photograph etc.
4. Can be used as a binocular separately.
5. Portable and detachable, you can take photos at any time.
6. 12 times zoom, which can adjust the focal length.
7. Plug and play, easy to instal.