Feature:1. This guitar active soundhole pickup is suitable for classic \u0026 folk guitars with sound hole of 88-105mm, easy installation.2. Dual pickup system-magnetic and microphone, and the volume of pickup and microphone can be adjusted separately.3. Magnetic is to collect the sound from the strings while you are playing the guitar.4. The microphone is for collecting the sound when you are tapping the guitar.5. Features rich, warm ton and wonderful response of the middle and bass, offers the best experience of tapping.6. Suitable for Classic \u0026 folk guitars with sound hole of 88-105mm, easy installation.7. Dual Pickup SystemMagnetic and Microphone, and the volume of pickup and microphone can be adjusted separately.8. Magnetic Collect the sound from the strings while you are playing the guitar.9. Microphone For collecting the sound when you are tapping the guitar.10. Material Plastic + MetalSpecification:Features:This guitar active soundhole pickup is suitable for classic & folk guitars with sound hole of 88-105mm, easy installation.Dual pickup system-magnetic and microphone, and the volume of pickup and microphone can be adjusted separately.Magnetic is to collect the sound from the strings while you are playing the guitar.The microphone is for collecting the sound when you are tapping the guitar.Features rich, warm ton and wonderful response of the middle and bass, offers the best experience of tapping.Specifications:Color: BlackMaterial: Plastic + MetalPower Supply: 1 * CR2032 batteryItem Size: 10.1 * 2.3 * 3.1cm/ 4 * 0.9 * 1.2inItem Weight: 150g/ 5.3ozPackage Size: 19 * 13 * 6cm/ 7.5 * 5.1 * 2.4inPackage Weight: 350g/ 12.3ozPackage List:1 * Pickup1 * CR2032 Battery1 * Endpin Jack Holder2 * Cable Holders2 * Screws1 * Users' Manual(English & Chinese)Package List:1 * Pickup1 * CR2032 Battery1 * Endpin Jack Holder2 * Cable Holders2 * Screws1 * Users' Manual(English & Chinese)