OOTDTY Features: Wide frequency response, low noise, accurate sound pickup of musical instrument. Improve the sound of your musical instruments. Easy simple, convenient, quality beyond your imagination. It has the properties of an electromagnetic field and converts it into electronic signals according to mechanical vibrations. Easy installation, insert the guitar's soundhole and quickly lock it in place, then connect the input to the standard 6.35mm connector. It is harmonious, let the music go under the control of your fingers. This is a great pickup that fits most guitars as a direct replacement. Mini look, black metallic material. It is ideal for most acoustic guitars. Specification: Material: Iron Size: Approx.22x5cm/8.66x1.96inches Color: Black Power: No need battery, powered by guitar amp. Output Line Interface: 6.35mm. Connection cable length: 3m. Application: Acoustic Guitar Pickup, Classical Guitar PickupPackage Included:1 x Guitar PickupNote:1. Please allow 1-2cm errors due to manual measurement, please make sure you do not mind before ordering.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you for your understanding.