the main chip have integraded the RF function into chip+Antenna have been integraded into PCB board
Product Name:Broadlink RM Pro
Model Number: RM03
Compatible Models: IPHONE 6, IPHONE 5S ,IPHONE 5 , IPHONE 4,IPHONE 6 6s plus, IPHONE 7 7s plus and so on
Function: WIFI+IR+RF