🎚️ 3.5mm • 3.5mm Stereo Extension Cable

This cable extends the reach of any standard 3.5mm stereo connection. It’s perfect for headphones, speakers, microphones (TRS only), and embedded audio paths where the original cable is just too short.
 
🔌 Cable Form
Connectors:
One 3.5mm TRS male plug
One 3.5mm TRS female jack
Signal Type:
Stereo analog audio (Left + Right channels)
Cable Type:
Shielded, unbalanced stereo extension
Available in lengths from 6ft to 75ft+
 
🖥️ Compatible Devices
🎧 Headphones, earbuds, headsets (TRS only)
📱 Phones, tablets, laptops
🎮 Game consoles, handhelds
📼 Cassette decks, boomboxes
🧪 Embedded boards, dev kits
🚗 Car stereos, AUX ports
 
✅ Common Uses
🔊 Extend headphone cable for comfort or mobility
🎧 Reach from audio source to seated position
🎮 Add slack to console or handheld audio output
🎛️ Patch stereo signal in embedded or rack setups
🧰 Bridge tight spaces in AV installations
🧪 Prototype stereo paths with flexible routing
 
🧠 Signal Format
TRS (Tip-Ring-Sleeve):
Tip = Left audio
Ring = Right audio
Sleeve = Ground
Stereo Behavior:
Preserves stereo separation
No summing or splitting
 
⚠️ Things to Watch Out For
🔄 Not for TRRS/mic headsets — won’t pass mic or control signals
📏 Long cable = potential signal loss — use shielded cables for >10ft
🔊 Connector bulk — female jack may be large for embedded builds
🎛️ Impedance mismatch — rare, but possible with passive gear
🧬 Loose fit — low-quality jacks may cause intermittent signal
 
🛠️ Quick Tips for Beginners
🔍 Count the black bands: 2 = TRS (stereo), 3 = TRRS (mic/control)
🧠 Use for stereo playback, not mic input
⚡ Choose shielded cable for longer runs
🧰 Great for travel rigs, gaming setups, and embedded builds
🎛️ Test fit before permanent install