SmallRig Universal Mobile Phone Cage - 2791B
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The SmallRig Universal Mobile Phone Cage 2791B is an essential tool for mobile filmmakers, vloggers, and streamers who require a professional-grade stabilization platform for their smartphone. It provides a secure, screw-tightening mounting system that ensures your device stays locked in place, regardless of its case or accessory setup. While its robust build quality offers significant utility for mounting external microphones, LED lights, and tripods, users should note that the cage's rigid design is not as compact as simple spring-loaded clips, requiring a brief setup time to secure the device properly.
All features
| Brand | SmallRig |
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Extended Product Information
FAQs
Will this cage fit a phone with a thick battery case?
Yes, as long as the total thickness of the phone and case is within 17mm and the width is between 57mm and 90mm.
Does the cage interfere with phone camera lenses?
The cage is designed with wide cutouts to accommodate the camera arrays of most modern smartphones, but please ensure your phone is positioned so the lenses are not obstructed.
Can I use a tripod with this cage?
Yes, there are multiple 1/4-20 threaded holes on the cage that allow you to attach it to standard tripods in either horizontal or vertical orientations.
Is the Allen wrench required every time I take the phone out?
Yes, because the cage uses a secure screw-tightening mechanism rather than a spring-loaded clamp, the Allen wrench is necessary for both mounting and removal.
Does the cage support MagSafe accessories?
The cage accommodates phones that have MagSafe card holders attached, provided the total dimensions remain within the specified 90mm width and 17mm thickness limits.
Troubleshooting
Phone feels loose in the cage
Ensure the clamping screw is tightened firmly using the Allen wrench and confirm the phone is centered correctly between the silicone pads.
Difficulty attaching accessories
Check that the accessory uses a standard 1/4-20 thread or cold shoe mount; ensure the accessory locking nut is fully backed off before inserting it.
Pros and Cons
Pros
- Secure screw-locking design prevents accidental drops
- High level of modularity with numerous mounting points
- Compatible with almost any smartphone and case combination
- Supports both portrait and landscape orientation
- Durable build using a mix of stainless steel and aluminum
Cons
- Requires using an Allen wrench to mount the phone
- Adds significant size compared to handheld use
- Does not provide electronic stabilization or charging features on its own
Setup, Compatibility & Care
To set up your device, loosen the screw-tightening mechanism using the included Allen wrench. Place your smartphone into the center of the cage, ensuring the silicone pads make full contact with the device edges. Tighten the screw until the phone is firmly locked but avoid overtightening.
This cage is compatible with any smartphone device with a width between 57mm and 90mm and a thickness of up to 17mm. For care, wipe down the aluminum and steel surfaces with a clean, dry cloth after outdoor use, especially if exposed to moisture or dust. Periodically check the tightness of the accessory screws to ensure the cage remains stable over time.