AMUMU SP30 Woody Magnetic Soundhole Pickup for Steel String Acoustic Guitars Single Coil Rare Earth Neodymium Magnet

• ★ FITS in soundholes from 3.88” (98.5 mm) to 3.94” (100mm) diameter. ★ HIGH impedance passive design, no battery required.
• ★ BUILT with Customized Rare Earth Neodymium Magnet and Single Coil with Handwound Oxygen-Free Copper.
• ★ SOLID Beech Wood Housing for better transmission of Acoustic Vibrations with Super String Balance and Pure Acoustic Clarity.
• ★ CAME with Customized Studio Grade Lossless Transmission Audio Cable.
• ★ QUICK Installation and Storage, no drilling required, harmless for guitars. ★ DOES not work with nylon guitar strings but only works with steel-string acoustic guitars. ★ DOES not work with 3/4-size guitars like Taylor Baby, Little Martin series.

Specification: Transducer: Neodymium Magnetic Pickup Type: Single Coil Passive Placement: Soundhole Pickup with Strap end-pin Jack Jack: 1/4" Female Housing: Solid Beech Wood Battery: No need Fits soundhole: 3.82" to 4.33”