The SPA332 is a small size Bluetooth module based on the Phillips BGB203 system in package (SiP). The BGB203 has on chip SRAM and FLASH stacked in the same package.
The SPA332 intefaces to your micro-controller through an RS232 affording the user an easy means of implementing a Bluetooth link.
The SPA332 is supplied here complete with an external antenna which conencts to the SPA332 via a 2mm connector.
SPA332 Datasheet