This is the iDatastart RF1111A 1-Button/1-Way RF kit.
If you need a compact, slim, basic key fob, this is a great option for you. Great for use with push to start vehicles, when required to use a key fob, if you wish to reduce the bulkiness of your key chain. 1-way remote upgrade kit for iDataStart HCX. Includes two TR1110A remotes offering up to 3,000 feet of long-range remote start and keyless entry control! AN2300A universal antenna included.