Amazon.com : The Lord of the Tools Seamless Focus Gear Ring for 60 67mm Diameter Lens Follow Focus Ring Standard 0.8 Mod 360 Rotation Focus Gear Video Camera Lens Accessories Black : Electronics How to Make Silent Mode Vibrate on iPhone How to Make a Contact Always Ring on iPhone (Even on Silent or Do Not Disturb) How to Get Vibration Over Silent on iPhone & Android Appuals Focus Mode is more than Do Not Disturb. Make your iPhone change with your day Work, Sleep, Gym & more. Alternative hook options Did You Know? Your iPhone can switch This is one of those iPhone features more people should know about! You can set a specific contact(s) to ring through even when your phone is on Silent or in Focus mode.