Hey gang! I just activated a small tracker. It comunicates via sms texts. It's the TK 102-2. $24 on Amazon. I used a prepaid H20 sim card for $.01 and loaded it with $10.00. I attached it to the top inside of a leg on the Q500 4K with a velcro strap. Some reviews complain about it being hard to activate. I didn't have a problem. This little thing has LOTS of cool features that can be used for other applications, *cough* teenagers... I hope not to need it, but $35 to find my new expensive quad is worth it. This video gives a decent demo.