Stolen while in airplane mode, and you're going to rely on BLE? A "good" thief would learn that he'd need to carry around a Faraday cage (read: some tinfoil) to block the signals. The only disadvantage is that the act of putting tinfoil around an iPhone then becomes suspicious.

> (read: some tinfoil)

Try it. Wrap your phone in tinfoil then call it. It will still ring.

It's harder than it looks to make a Faraday cage.

They'd just have a tinfoil lined bag. No suspicion. I bet you can buy one one Amazon for next to nothing as it is.

Someone could wrap a phone in tinfoil pretty quickly or have one ready-made in the shape of a pouch. Or start carrying a special pouch that stops signals.[0]

Either way once you remove the phone from sight, the suspicion is probably over. The only next step is to kill the signal.

[0] https://www.overyondr.com/howitworks

Yondr pouches don't actually block RF, they just physically prevent you from using the phone because it's in a sack held closed with a magnetic lock.

Seems undesirable if it doesn't automatically silence the phone by disabling incoming calls. If they still ring while in a sealed back, then I don't see the "artists" they're marketing yondor to, being very happy.

If I'm someone who works in actual life and death related matters and on a regular on-call schedule, I need to be able to

1) Still continue to have a life

2) Not have my phone completely disabled just because I went to see a comedy gig.

Having to leave the comedy gig when my phone starts vibrating in the bag is a good compromise, as is wearing a smart watch that can notify me exactly what the call or message is about before I do.

The selling point is to reduce visual / audible recordings of the performance, allowing artists to say or do things that may be problematic when taken out of context.

Yondr doesn't want to be entirely responsible for the repercussions of disabling your phone, they just don't want you answering it inside the venue.

They remind you to disable the ringer before putting it in the bag.

Ah good to know. I assumed they were lined with lead and/or tinfoil