Both the device and the phone have to be fully charged and have fresh batteries

Pros - price, nice looking, small, replaceable battery, comes with wristband and adapter for a lanyardCons - everything above, the "Pros" are nice if only...

Fortunately the batteries are quite cheap, so even if the battery needs to be replaced every other month, it's still cheaper than paying a monthly fee for an emergency alert necklace.

Also the battery was dead when it arrived, but we had replacements on hand.

Also, the battery died within a month.

This one also came with a dead battery so in the middle of getting mom settled at

We test it periodically; this last time was when we discovered it was not working and the battery was dead after having been changed on 8/17/17 and it was now only 11/6/17.

The battery is already dead

The device is not as reliable as I'd like as far as connectivity and ability to send the emergency SMS message.

it won't work as that's about 40' with a standard hollow core door between.

n’t had an “emergency” to have to really use it yet

n’t had an “emergency” to have to really use it yet