These would be great for vacation travel. I sometimes travel with another couple and we often split up during the day. I prefer not to pay for cell service in

These would be great for vacation travel. I sometimes travel with another couple and we often split up during the day. I prefer not to pay for cell service in these countries (high cost, I'm on vacation, can check email later, don't want to be tempted to spend time on my phone etc) but this would be nice since it restricts it to messages to the other couple only and location info. Very tempted to buy a pair.