Product Description： Upgrade your acoustic guitar with this premium Dual-Source Microphone and Piezo Pickup System. Designed to capture the authentic tonality of your instrument, this active preamplifier system bridges the gap between mic'd studio precision and stage convenience. The soundhole-mounted control unit allows you to blend the airy warmth of the internal microphone with the punchy clarity of the under-saddle element. With built-in volume and phase controls, you can quickly adjust your mix and eliminate feedback on stage. Specifications: Type: Dual-Source Acoustic Guitar Pickup (Microphone + Piezo Element) Mounting: Soundhole Mounted Controls: Master Volume, Mic Blend, Phase Switch Power Supply: 9V Battery (not included) Application: Steel-String Acoustic Guitars Package Includes: 1 x Soundhole Control Unit 1 x Flexible Under-Saddle Piezo Pickup 1 x Endpin Jack Cable Assembly 1 x Battery Bag & Harness 1 x Set of Mounting Adhesives