ETS PA921 Smartphone Audio Balun Cable for iPhone 18-Inches

ETS PA921 Smartphone Audio Balun Cable for iPhone 18-Inches

  • $49.95
    Unit price per 

The ETS PA921 Smartphone Audio Balun Cable for iPhone mates professional XLR microphones with the 3.5mm TRRS jack of a smartphone's audio input jack, allowing software on the iPhone to record professional quality audio. Cables feature built-in ETS Balanced Line technology. The PA921 with an 18-inch flat pigtail is a record only iPhone adapter cable. To monitor your aduio, use the ETS-PA922.


  • Connects the XLR-style microphone to the TRRS plug on a smartphone to allow for professional quality digital audio recording
  • Useful for field (ENG) recording and listening. Software required (supplied with PA922) to use the `listen-in' feature, only available for the Apple iPhone smartphones
  • Recording events such as interviews, parties, concerts and other spontaneous events
  • The PA921 may be used with other smartphones, but, sound quality will vary
  • Passive devices (no power required)
  • Small form factor
  • Low profile TRRS plug fits with most smartphone cases in place
  • 18-inch tangle-free flat cord with 6-inch audio cord
  • Made in USA


  • Bandwidth: 10 Hz to 20 KHz
  • Connectors: 3.5mm TRRS mini-plug to 3-Pin Female XLR
  • 3.5mm Mini Plug Impedance: 600 ohm
  • XLR Impedance: 100 ohm
  • Common Mode: 60dB min. @ 1KHz
  • Rejection: 40dB min. over the frequency range
  • Dimensions: 22mm dia. x 533mm (including pigtail)
  • Net Weight 0.06 Kg