Radio Shack, Music Mixer, models:

3-Channel Headphone Volume Booster	Quick Start Manual
32-1214	Owner'S Manual
32-1218	Owner'S Manual
32-2057	User Manual Quick Start Manual
32-2058	User Manual Quick Start Manual
32-3001	Owner'S Manual
32-3008	Owner'S Manual
3200026	User Manual
4-CHANNEL STEREO SSM-1750	Owner'S Manual
SSM-1750	Owner'S Manual
SSM-60	Owner'S Manual