Remote Audio CATCiPBNC Timecode input cable for iPad and iPhone: Pro-Sound.com
Tascam iXJ2 MIc & Line Level Digital Recording Interface for i Phone & I pad
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Amazon.com: Headset Buddy Line-Level Audio Adapter with Built in Attenuation for iPhone, Smartphones, Soundboards and Mixers (iPhone-Mic-Line) : Electronics
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Amazon.com: Headset Buddy Line-Level Audio Adapter with Built in Attenuation for iPhone, Smartphones, Soundboards and Mixers (iPhone-Mic-Line) : Electronics
Mini Stereo Line Level Booster for MP3, iPod, iPad, iPhone Audio Pre-Amplifier | eBay
Ambient Recording Line Level Timecode Input Cable for iPod Touch/iPhone/iPad ITC-INX
Line Level Audio Cable | iPhone Attenuator Adapter for Line in Recording
How to Use an iPhone Headphone Jack as a Line-In Recording : Tech Yeah! - YouTube
impedance - line-level audio into an iPhone headset jack? - Electrical Engineering Stack Exchange
Amazon.com: Headset Buddy Line-Level Audio Adapter with Built in Attenuation for iPhone, Smartphones, Soundboards and Mixers (iPhone-Mic-Line) : Electronics
M-Track Duo | M-Audio
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01-Mic-Line-Plus Headset Buddy Line-Level Input Audio Plus Headphone Monitoring with Built in Attenuator Adapter for iPhone, Smartphones (Mic-Lin