All things Garrett Z-Lynk Wireless Technology can be orderd here.
Garrett PRO-Pointer AT Z-Lynk Pin-Pointer
Garrett® MS-3 Z-Lynk™ Wireless Headphones
Garrett Z-Lynk Adapter Cable (1/4" jack to 2-pin AT connector)
Garrett MS-3 Z-Lynk Wireless Kit
Garrett Z-Lynk WR-1 Wireless Receiver for 2-pin AT headphones
Garrett Z-Lynk Headphone Cable with 2-pin AT connector
Garrett WT-1 Wireless Transmitter
Garrett WR-1 Wireless Receiver