This accessory can be transported and used as your keyholder with its perfect and compact design. I have been using it for a while, and I am pretty happy with these lenses. The only bad point… would be the huge price.
Please find here its technical specifications and a short description:
The perfect photo accessory for your next adventure, the olloclip Active Lens for iPhone 6 and iPhone 6 Plus lets you transform your photography and social media. It comes packed with ultra-wide and telephoto lenses and lets your instantly capture and share all your experiences.
The brand new ultra-wde lens captures 155 degrees in photo mode on iPhone 6 and iPhone 6 Plus. Because of its unique perspective, ultra-wide is a great addition to the kit of sports and adventure shooters and is an important option for portraitists wanting to include environmental context. For the everyday photographer, it is indispensable when shooting group shots of friends on both the front- and rear-facing cameras.
Switch quickly and easily to the telephoto lens, which offers 2x optical zoom to get closer to the action. In addition to getting you twice as close, the lens provides a shallower depth-of-field, allowing the use of selective focus to capture stunning portraits and make your subject stand out from its background.
olloclip offers innovative quality optics but in compact and lightweight form factors. This easy-to-use mobile lens system has no oversized, heavy lenses or extra parts — just the way the mobile photographer would expect it. Like lenses used on larger professional DSLR cameras, this olloclip lens system is designed specifically for iPhone to provide similar perspectives, yet is small enough to fit in a pocket, purse, or hand. And it clips on and off your device in seconds.