If you have an iPod, you might have the beginnings of a mini-recording studio available to you. And with another piece of equipment, the i-GX Guitar Effect Processor with iPod Player/Recorder, more options...
The Jammin i-GX will allow for playing a guitar while using an iPod for practicing. It will also record the session...to the iPod.
There is a 6.35 mm (1/4-inch) input port for a guitar, one (unbalanced) for a microphone, and one that allows for the unit to be connected to an amplifier. And there is a 3.5 mm (1.8-inch) stereo line-in auxiliary input port.
AUX (3.5mm stereo): 250 mV
iPOD: 500 mV
GUITAR(6.35mm Jack): 8mV
MIC(6.35mm Jack): 10mV
With a 3.5 mm (1/8-inch) stereo headphone output port, the audio can be monitored as the i-GX is used as a 4-channel mixer (with the iPod, guitar, microphone, and the auxillary input port).
The 24 bit/96 kHz effects processor includes:
5 amplification simulations (acoustic, clean, overdrive, distortion, and microphone)...
4 digital effects (chorus, flanger, phaser, and tremelo)...
and 2 ambience options (reverb and echo).
The "Compatibility Chart" included in the packaging noted some generations of iPods and iPhones:
iPods, from 3rd to 6th generations
Minis, 1st and 2nd
Shuffle, 1st and 2nd
Nano, 1st through the 4th
Touch, 1st and 2nd
and 3G and 3GS iPhones.
Certain features are supported by specific models: some units can be recharged by the i-GX, and record using the “Voice memo” application in the iPod.
And another tool that is built-in is a harmonic tuner (E/A/D/G/B/E).
The i-GX measures 147 mm (5 inches) × 162 mm (6 inches) x 58 mm (2 inches)...which is about as large as my open hand. And it weighs only 0.4 kg (14 ounces)...about as much as a "heavy" cellphone.
Four AAA batteries are needed to power the unit, but there is a port for the connection of a 9-volt (1 ampere) AC adapter.
PURCHASE AT AMAZON.COM:
Jammin i-GX Guitar Effect Processor with iPod Player / Recorder
Other products available from Jammin Pro include the StudioMix 702 7 channel mixer...
It can record to USB flash drives up to 32 GB in size. "Channel 1" has 1 XLR input, and 1 1/4-inch, mono input..."channel 2 and 3" are line level inputs...and "channel 4 and 5" have RCA inputs.
The Jammin Pro StudioPack 202 is a 3 piece bundle mini-studio to allow for recording performances to a computer.
The SoundBox 202 audio interface connnects to the USB port. From the Quick Start Guide (that's included in the package), the supported configuration is to: "Connect the Microphone...to Input 1 of SoundBox 202, or you can connect your guitar/bass to the input 2...at the same time."
The C-10 (condenser) microphone has a cardioid (heart-shaped) pattern. A table stand, and large windscreen is provided.
And the comfortable HD-65 headphones have a 10 foot long cord. They have become my "go to" headphones.