A programming dongle can be programmed with aircraft information and easily stored or transported. This dongle provides quick programming when connected to an ELT. Some of the more common reasons and applications for a dongle are: – Aircraft being ferried from one country to another – Ownership transfer of an aircraft – Aircraft tail number change With the relatively low cost ($240 Retail) and the hazmat shipping considerations for 406 ELTs, it is much more cost effective for an owner to purchase a dongle to the owner to change their programming.