Swamp Stereo 3.5mm (Mini-Jack) to Mono XLR(m) Cable.

Stereo 3.5mm to Mono/Unbalanced XLR
This cable will combine the LEFT and RIGHT audio channels from a 3.5mm / 1/8" output, such as on a iPod, iPhone, Laptop or MP3 player, into a single audio channel. Making the signal at the XLR(m) connector 'mono' or 'unbalanced'.

Avoid Weird Sounds - Stereo to Balanced does not work!
When sending a "stereo" signal (from iPod, etc.), using a typical 3.5mm to XLR cable wired for a stereo/balanced connection, will result in a balanced XLR input reading the "stereo" signal as "balanced" and cancelling out some sound and generally making your audio some very odd.

Specifications:

• Length: 150cm (150 centimeter)
  
• Conductor Cores: 2x (0.12mm*20)
• Ground Core: 2x (0.12mm*50)
• Connectors: 3.5mm (1/8") - XLR(f) (Ningbo Neutrik YS231L-B, YS137N)
• Wiring: (Pin1 - Sleeve, Pin2 - Tip, Pin2 - Ring, Pin3 - Sleeve)