I was looking for a way to carry the wireless module in the field, and I found a good way to do it. All it takes is a medium Bytech universal smartphone case and some Velcro (both available at Walmart). The wireless module fits tightly into this particular case, so you can take a pair of sharp scissors and cut the fold over top off the phone case without any danger of the module falling out of the case. By removing the cover flap off of the phone case, that opens the top where you can easily plug your headphones into the module. Then, I took some Velcro, and attached it to the upper, left chest of my hunting vest that I wear while detecting, and I covered the back of the phone case with Velcro, also--around the area where a small piece of Velcro that held the top flap of the phone case in place when it was closed. Then, I attached the phone case with the wireless module inside to the upper-left chest of my hunting vest. This way, your headphone jack is not hitting on your side as it does with the belt clip, and it has less signal interference than putting the module in a pocket. Just thought I would share this with other 3030 users.