Model: 33-660
This manual provides detailed instructions for the proper setup, operation, and maintenance of your RadioShack XLR/USB Handheld Dynamic Cardioid Microphone, model 33-660. Please read this manual thoroughly before using the microphone to ensure optimal performance and longevity.
Verify that all items listed below are included in your package:

Image: The microphone, USB cable, XLR cable, and desktop tripod stand as packaged.

Image: A detailed view of the microphone's body, highlighting the integrated ON/OFF switch for easy control.

Image: The microphone securely attached to the included desktop tripod stand, ready for use.

Image: The base of the microphone, clearly showing the USB port and the XLR connector for dual connectivity options.
The microphone features an ON/OFF switch located on its body. Slide the switch to the "ON" position to activate the microphone. Slide it to the "OFF" position to deactivate it. This switch controls the microphone's audio output.

Image: A close-up view of the microphone's grille, indicating the primary sound capture area for its cardioid pattern.
When using the microphone via USB, ensure your computer's audio settings are correctly configured:
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound output (USB) | Microphone switch is OFF. Incorrect input device selected. USB cable not fully connected. Computer volume too low. | Slide switch to ON. Select USB microphone in computer's sound settings. Ensure USB cable is securely connected to both microphone and computer. Increase computer's input volume. |
| No sound output (XLR) | Microphone switch is OFF. XLR cable not fully connected. Mixer/interface input gain too low. Phantom power required (not for this dynamic mic, but common issue). | Slide switch to ON. Ensure XLR cable is securely connected. Increase input gain on your mixer/interface. This dynamic microphone does not require phantom power. |
| Poor sound quality/background noise | Microphone too far from source. Incorrect microphone orientation. High ambient noise. Input gain too high/low. | Move microphone closer to the sound source. Ensure microphone is aimed directly at the source. Reduce background noise in the recording environment. Adjust input gain on your computer/mixer. |
| Microphone not recognized by computer | Faulty USB port. Faulty USB cable. Driver conflict. | Try a different USB port. Try a different USB cable. Restart your computer. Check for OS updates. |
| Feature | Detail |
|---|---|
| Model Number | 33-660 |
| Connectivity Technology | USB, XLR |
| Polar Pattern | Unidirectional (Cardioid) |
| Microphone Form Factor | Handheld |
| Hardware Platform | PC (Compatible with Mac) |
| Power Source | Corded Electric (via USB or XLR connection) |
| Item Weight | 1.34 pounds (approx. 0.61 kg) |
| Package Dimensions | 8.8 x 5 x 2.6 inches (approx. 22.35 x 12.7 x 6.6 cm) |
| Manufacturer | RadioShack |
| UPC | 040293988470 |
For warranty information or technical support, please refer to the documentation provided at the time of purchase or visit the official RadioShack website. Keep your proof of purchase for warranty claims.
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