Double cartridges pickup is designed for thumb piano, steel tongue drum and more percussion instruments. Magnetic adsorption, no drilling required, easy to use. With high sensitivity and clear pickup sound, it greatly restores the sound of the musical instrument. Features: Double cartridges pickup sound design, realize high sensitivity; it can restore the sound of the musical instrument better than single cartridge. Great anti-interference ability, clear pickup sound; bright high pitch without being harsh, deep low pitch with grain. Magnetic adsorption, easy to install and remove, no need drilling, does no damage to your instrument. 6.5mm audio interface and 1.8m (5.9ft) noise reduction audio cable length for easy and flexible use. Adopts vibration pickup mode, this universal pickup is designed for thumb piano, steel tongue drum and more percussion instruments. Note: Size and color may be slightly different because of manual measurement and different light conditions. Thanks for understanding. Specifications: Color: Black Pickup Principle: Vibration Audio Interface: 6.5mm Cable Length: 1.8m / 5.9ft Package Size: 12 * 20 * 2cm / 4.72 * 7.87 * 0.79in Package Weight: 200g / 7.05oz Package List: 1 * Universal Pickup