Review: Olloclip for iPhone X — the best budget lens system | AppleInsider
Amazon.com : olloclip Essential Telephoto 2X, Ultra-Wide Lens Kit with Multi-Device Clip Compatible with iPhone, Pixel and Samsung Galaxy Smartphones + Selfie Bluetooth Remote Shutter : Electronics
Amazon.com: olloclip Lens Kit Includes: Telephoto and Ultra-Wide Premium Glass Lenses for iPhone 8/8 Plus & iPhone 7/7 Plus with Selfie Bluetooth Remote Shutter : Cell Phones & Accessories