I am stuck between the Warrior and SP models.  I like to fact that either will interface with a smart phone due to that you never know when you may need backup communications. The headset I have is the 3M Peltor #MT17H682FB-47 GN.  I am looking to link this headset to a Motorola APX6000 / 800MHz radio and possibly an additional 400MHz radio.  This other one is made by Kenwood / model # TK3360.  We do have another 400MHz Kenwood radio but right now I do not have the model # to it.  Does anyone have experience with either or both?