Youmile 20pcs Lead Microphone Drum Trigger Acoustic Pickup Buzzer Drum Guitar Double Sided Adhesive Foam Sticker with 27mm Piezo Disc Piezo Pickup

Ships from Japan 【High performance】: Resonant frequency 4.6 +/- 0.5 KHz, resonant impedance up to 300 ohms, low power consumption, high sensitivity [High quality]: Made of brass and ceramic, heat resistant, stable, durable and long service life [Size]: Piezo pickup plate diameter 27mm, thickness 0.4mm. Wire length 100mm (3.93"), small, thin and lightweight 【Easy to use】: The pre-wired piezo pickup can be easily installed and used in homemade instruments for detecting sound and vibration, such as cigar box guitars and foot stompers. [Wide range of uses]: Perfect for beginners to make touch sensors, electronic drum triggers, buzzers, contact microphones, watches, cameras, phones, electronic toys, computers, etc. Specifications Plate material: brass. Resonance Frequency (kHz): 4.6 +/- 0.5 KHz Resonance Impedance: Below ~300 ohms. Static capacitance: 28000PF +/- 30%. Storage temp: -30℃-+70℃. Outer diameter: 27mm /1.06'' Inner diameter: 20mm /0.79'' Lead length: 10cm /3.93'' Suitable for DIY projects, contact microphones, cigar box guitar pickups, touch sensors, drum triggers, homemade speakers, buzzers, etc. Package Includes: 20 x27mm Piezo Disc Piezo Pickup 20x Foam Stickers