One option that will work is using Yaseu's BT Stereo headset (BH-1A and FEP-4). The FEP-4 connects via short wire to the BH-1A and because of the hole in the BH-1A it is NOT waterproof. I have the BH-2A (mono and waterproof) and really like it. It looks dorky but works great. Both TX and RX are loud and clear. Hope this helps.