Fantastic transmitter and receiver with 1/4" headphone jack connector.

• Freedom—all the benefits of using headphones, without being tied to your metal detector.

• Lightning-fast speed—Near-zero delay (17-milliseconds) from your detector to your headphones. Six times faster than Bluetooth speed, and up to four times faster than other wireless headphone kits.

• Versatility—Nearly universal; designed to work with most detector brands and most wired headphones.

• Frequency-Hopping Technology—Creates an infinite number of channels to prevent interference with nearby headphones and wireless devices.

• Extended Hunting Time—Get up to 30 hours of operation per charge. Recharge the Z-Lynk modules with any micro-USB charging port—on your laptop, in your car, or with a USB power block such as a smartphone charger.