Low profile 3.5mm stereo audio jack.
Designing an Audio Amplifier in Real-Time (the Beat Box Amp)
Audio Jack - 1/4 Stereo (right angle) - COM-11144 - SparkFun Electronics
PICAXE USB Programming Cable - PGM-08312 - SparkFun Electronics
PRT-08032 SparkFun SparkFun Accessories Audio Jack 3.5mm datasheet, inventory, & pricing.
PRT-08032 SparkFun | Mouser
Audio Jack 3.5mm from MindKits New Zealand
Codec Shield - DEV-11290 - SparkFun Electronics
Audio Adapter - 1/4 to 3.5 mm Stereo - COM-11149 - SparkFun Electronics
The Dryer Messenger - Make
Audio Cable 3.5mm to RCA - 6ft - CAB-08919 - SparkFun Electronics
Audio Codec Breakout - WM8960 Hookup Guide
Graphic Equalizer Display Filter - MSGEQ7 - COM-10468 - SparkFun Electronics
Audio Jack Breakout - PRT-08827 - SparkFun Electronics
Audio Plug - 3.5mm - COM-11143 - SparkFun Electronics
3.5mm Audio Jack Adapter - RobotShop