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 more→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 …