The wireless system brand METAL DETECTOR XP works with audio modules AUREL brand

[ashefr10]

Indeed prospecting with a friend this morning I started my home based transmitter aurel TXFMAUDIO module and when my friend started his brand wireless headset XP he extended my detector. these modules are compatible with the accessories wireless xp as they operate at 433 mhz.
The only problem it takes at 12 volts while the receiver aurel XP headset works with him a li-ion battery 3.7 volts.