Feature:1. Versatile Sound Effects: This guitar pickup is equipped with a variety of sound effects, allowing you to customize your tone according to your personal preferences. With its acoustic design, it captures the delicate nuances of sound, making your performance more realistic and immersive.2. Personalized Adjustments: In addition to the standard BASS, MIDDLE, and TREBLE controls, this pickup also features PRES high-frequency control and MIC.PI, allowing for personalized adjustments to meet different playing requirements. This ensures that your music is diverse and expressive, enhancing your overall musical experience.3. Built-in Microphone Function: With its built-in microphone function, this pickup not only amplifies the sound but also captures it simultaneously. This makes it perfect for combining singing and playing, providing a versatile solution for both live performances and practice sessions.4. Compact and Portable: Designed to be lightweight and easy to install, this pickup is highly portable, making it suitable for various occasions. Whether you're performing on stage or practicing in the studio, it delivers powerful functionality without compromising convenience.5. Wide Compatibility: Compatible with acoustic guitars, this wooden guitar pickup is a great addition to any classical guitar setup. It ensures accurate and coordinated performance, allowing you to achieve precise and harmonious results.Specification:Button: Tuner/PhaseKnob: Volume/Bass/Middle/Treble/Pres/MIC.PIPower Supply: Using DC 9V battery, but this product does not includeProduct Color: BlackPickup Hole Size: 6.9 * 4.7 cm/2.7 * 1.8 inchBattery Box Opening Size: 4.9 * 2.5 cm/1.9 * 1 inchPickup Size: 7.6 * 5.2 * 3.1 cm/3 * 2 * 1.2 inchBattery Box Size: 6.1 * 3.5 * 5.7 cm/2.4 * 1.4 * 2.2 inchPackage List:1 * Guitar Pickup1 * Battery Box1 * 4P Wire1 * Pickup Stick1 * Tie Buckle1 * Zip Tie13 * Screw