D'Addario PWSH01 Screeching Halt Sound-Hole Plug

Put an end to feedback with this sound-hole plug for your acoustic electric guitar. It fits most standard acoustic guitar sound-holes.

Planet Waves O-Port Guitar Tone Enhancer and Feedback Suppressor

No longer available at zZounds
Give your acoustic a boost with this tone enhancer. It gives your guitar a fuller, richer sound and better projection, while suppressing feedback.

The Planet Waves O-Port will make any acoustic guitar sound richer, fuller, and louder, with more clarity and better projection. The O-Port material is custom blended for flexibility to prevent damage to your guitar finish and inlays. Your O-Port will suppress feedback and give your acoustic or acoustic electric guitar a fuller sound with more volume, better clarity and enhanced projection.

The inventor of the O-Port talks about his awesome invention:


Features:

- Richer, fuller, louder sound with more clarity and better projection
- Simple installation by loosening or removing strings and fitting O-Port into sound-hole
- Suppresses feedback
- Large size fits sound-holes from 3.875 to 4 inches
- Small size fits sound-holes from 3.375 to 3.5 inches

Large Size: Fits 3.875 inches - 4 inches (9.843 cm - 10.16 cm)

Small Size: Fits 3.375 inches - 3.5 inches (8.573 cm - 8.89 cm)

For support or warranty questions, please contact the manufacturer:
Phone: 800-323-2746