I've found the Chipolo deeply frustrating. I had the original version, which just wouldn't work with my iPhone. To their credit, Chipolo sent me a free replacement Chipolo Plus, but it's just too flaky to be of much use. Inevitably when I need to use Chipolo to find my keys, the connection has been lost so the core function of the unit can't be fulfilled. Maybe this is a general Bluetooth problem (I also have problems with other BT devices intermittently losing the connection and failing to reconnect) but either way, this product is just too unreliable to be of much use. And it's expensive.