Garrett Master Sound MS-2 Deluxe Headphones for ATX, AT Pro, AT Gold, Infinium or Sea Hunter #1627310 Water tight connector for use with ATX, AT Pro, AT Gold, Infinium or Sea HunterBuilt, field tested and approved for land use with all types of metal detectorsEfficient, wide dynamic audio range speakers enhance weak signals — FIND MORE TREASURE!Dual volume controls for adjusting signal levels to suit individual hearing requirements.Comfortable leather headband and ear cushions for maximum comfort.Reinforced 10-foot coiled cordSpeaker impedance: 8 ohms per channel. Mono/Stereo.Frequency response: 30-18,000 Hz.