YINETTECH 30PCS 27mm Piezo Element Pickup Guitar Transducer Prewired Trigger Buzzer Amplifiers Discs with Leads for Acoustic

Piezo element: The sound quality of acoustic guitar pickup is clear, thin and light, contactless, no noise, low voltage, low power consumption Durable material: The guitar pickup is made of copper and ceramic materials, wear-resistant, high temperature resistant, stable, not easy to damage, strong and durable. You can use it for a long time without frequent replacement Easy to use: These pre-wired piezo pickups can be easily installed on foot stomp and other homemade instruments for sound and vibration detection. Resonance frequency: 3.0 ~ 5.0 +/- 0.5 kHz, resonance impedance: maximum 300 ohm, low energy consumption and good sensitivity Wide application: Pickup is an integrated structure of an electronic sound receiver that uses a DC voltage supply commonly used in computers, printers, copiers, electronic toys, automotive electronics, phones, timers and other electronic products as tuners What you get: Package includes 30 pieces of 27mm piezo pickups, enough quantity for your long-term use.