Are you just satisfied with bluetooth? There are things only optical communication can do. The IrDA infrared communication modules features such avantages like,
high communication speed,high level of sequrity,more design freedom ( compatibility for future redesigning of set ) ROHM's IrDA communication modules are among the smallest in the industry and feature ultra-low power consumption, enabling ROHM to command a large market share. All products are fully supported and utilize the latest optical technology, providing the ideal solution to virtually any IrDA need.