Extra accessory cables for 707 Regal desk microphone and TEN-TEC or Yaesu rigs. 707T4 = 4 pin XLR to 4 pin TEN-TEC mic connector as used on original Orion, Jupiter, Omni-VI, Paragon, etc. Do not add cables when ordering model 707 unless you need a second output cable, as one is supplied at no charge with 707 purchase.