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

【Voltage Compatibility】 When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction.

【Plug Type】 Our products use Japanese plug types (A or B type). Please use a conversion adapter if necessary.

【Important Note on Transformers and Adapters】 A transformer adjusts voltage to match your device’s requirements. A conversion adapter only changes the plug shape and does not adjust voltage. Using only a conversion adapter without a transformer may result in damage to the product.

【Liability】 We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer.

[About clocks that synchronize time via radio waves] The function of clocks that synchronize time via radio waves only works in the Japanese area. Please be careful. 【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