SCR 10pcs Wire Mechanical Buzzer 6Vdc 75db 400kHz What this product is A pack of 10 wire mechanical buzzers designed for simple audible signals in education, hobby electronics, and prototype circuits. Each buzzer runs from 6Vdc and produces a clear 75db tone at 400kHz. Wire leads make these units quick to connect to batteries, test rigs, or lowvoltage control circuits. Key benefits Ready to use: Prewired terminals let you plug the buzzer into breadboards, battery packs, or quick test setups without soldering. Consistent audible feedback: Rated at 75db for reliable sound level in noisy classrooms, workshops, and event demos. Compact and versatile: Small mechanical design fits into handheld projects, game cabinets, and small enclosures. Economical pack of 10: Suits group labs, classroom kits, multiple prototypes, or repeated use across projects. Easy integration: Operates at 6Vdc, compatible with common lowvoltage control circuits and microcontrollerdriven outputs when appropriate driving circuitry is used. Important attributes Function: Mechanical buzzer that produces an audible tone for signaling and feedback. Voltage: 6Vdc operating voltage. Sound level: 75db output. Frequency: 400kHz nominal tone specification. Form factor: Wirelead connection for quick wiring and testing. Quantity: 10 pieces per pack. How it solves common problems Faster prototyping: Wire leads eliminate timeconsuming soldering during earlystage testing. Reproducible alerts: Uniform output across the pack ensures the same audible response on each unit. Costeffective replacement: When one buzzer fails or a build is started, having multiple units on hand reduces downtime. Typical applications Telegraph and Mores Code learning: Build simple telegraph keys and practice signal timing with reliable audible tones. Buzz wire games and skill testers: Provide instant, loud feedback when the probe contacts the wire. DIY alarms and indicators: Use as a signal element in hobby alarm circuits, continuity checks, or simple notification devices. Practical tips Use a proper driver or transistor when connecting to microcontroller pins to avoid overloading the control output. Verify polarity and supply voltage before connecting to prevent premature wear. Mount in small enclosures or on project panels using the wire leads and a secure anchoring method to minimize vibration transfer. What you receive Ten wire mechanical buzzers, each specified at 6Vdc, 75db, 400kHz, ready for integration into educational projects, hobby electronics, and quick prototyping setups. This product is intended for electronics projects, education kits, and nonmedical signaling applications.