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Alarms, Buzzers, and Sirens
  • Factory Direct Small and Thin 3V Reflowable Mobile Phone Buzzer 2700Hz Key Beeper for Alarms Buzzers Sirens
  • Factory Direct Small and Thin 3V Reflowable Mobile Phone Buzzer 2700Hz Key Beeper for Alarms Buzzers Sirens
  • Factory Direct Small and Thin 3V Reflowable Mobile Phone Buzzer 2700Hz Key Beeper for Alarms Buzzers Sirens
  • Factory Direct Small and Thin 3V Reflowable Mobile Phone Buzzer 2700Hz Key Beeper for Alarms Buzzers Sirens
  • Factory Direct Small and Thin 3V Reflowable Mobile Phone Buzzer 2700Hz Key Beeper for Alarms Buzzers Sirens
  • Factory Direct Small and Thin 3V Reflowable Mobile Phone Buzzer 2700Hz Key Beeper for Alarms Buzzers Sirens
Factory Direct Small and Thin 3V Reflowable Mobile Phone Buzzer 2700Hz Key Beeper for Alarms Buzzers Sirens
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Factory Direct Small and Thin 3V Reflowable Mobile Phone Buzzer 2700Hz Key Beeper for Alarms Buzzers Sirens

  • 100 - 499 Pieces
    $1
  • 500 - 999 Pieces
    $0.60
  • >= 1000 Pieces
    $0.50

Customization:

Customized logo（Min.Order: 5000 pieces）
Customized packaging（Min.Order: 10000 pieces）
Graphic customization（Min.Order: 5000 pieces）
View product details

Factory Direct Small and Thin 3V Reflowable Mobile Phone Buzzer 2700Hz Key Beeper for Alarms Buzzers Sirens

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Sound/Vibration Output: Generates clear 2700Hz alerts for key presses, device feedback, and status notifications in electronic systems.
  • Reflow Soldering Compatibility: Designed for seamless integration into automated manufacturing processes, ensuring durability in high-volume production.

Key features

  • 1. Reflow Soldering Compatibility for Streamlined Manufacturing

    • With reflow soldering compatibility, you can achieve faster assembly than traditional soldering methods*, enabling efficient mass production.

  • 2. Compact Design with Secure Mounting for Versatile Integration

    • With a slim rectangular shape and four mounting points, you can seamlessly integrate the buzzer into circuit boards for stable performance, outperforming bulkier alternatives in space-constrained devices*.

  • 3. Multi-Voltage Support and High-Frequency Output for Reliable Alerts

    • With a 2700Hz frequency and compatibility with 3V/3.6V/4.5V power supplies, you can deliver consistent alerts across devices, enhancing reliability over single-voltage buzzers*.

  • 4. Slim Profile for Space-Conscious Applications

    • With a small and thin design, you can optimize space in smartphones, wearables, and other compact electronics, offering up to 30% smaller footprint than standard buzzers*.

  • 5. CE Certification for EU Compliance and Quality Assurance

    • With CE certification, you can ensure adherence to EU safety and performance standards, surpassing non-certified competitors in quality and regulatory compliance*.

Product details

Factory Direct Small and Thin 3V Reflowable Mobile Phone Buzzer 2700Hz Key Beeper for Alarms Buzzers Sirens

The Factory Direct Price 3V reflowable mobile phone buzzer (2700Hz) combines compact design with robust performance, offering reliable sound/vibration feedback for electronic devices. With CE certification and versatile voltage options (3V, 3.6V, 4.5V), it is ideal for applications requiring precise audio alerts in space-constrained environments.

Technical specifications

FeatureSpecificationApplication Scenario
MaterialDurable plastic/metal compositeLong-term use in consumer electronics
Rated Voltage3V, 3.6V, 4.5VMobile phones, IoT devices, alarms
Frequency2700HzClear keypress feedback, alert tones
CertificationCE-compliantEU market-ready devices
Mounting Design4 square cutouts for secure solderingCompact PCB integration
DimensionsSmall and thin (rectangular, rounded corners)Wearables, handheld gadgets

Customization guide

Adjustable parameters:

  • Voltage Compatibility: Tailor voltage options (3V to 4.5V) to match device power requirements.
  • Frequency Tuning: Optimize sound output for specific alert types (e.g., high-pitched beeps).
  • Material Finish: Customize surface coatings for corrosion resistance or aesthetic needs.

Get inspired

With its slim profile and reflow soldering capability, this buzzer seamlessly integrates into modern electronics like smartphones, smartwatches, and automotive control panels. Its 2700Hz frequency ensures crisp feedback, while CE certification simplifies global deployment.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Voltage Range3V fixed3V–3.6V adjustable3V–4.5V wide-range
Frequency2700Hz standard2700–3000Hz variable2700–3200Hz premium
Durability10,000 hours20,000 hours30,000 hours*
Size12x8x3mm12x8x3mm10x7x2.5mm (thinner)

Supplier's note

  1. Technical Breakthroughs:

    • CE Certification: Ensures compliance with EU safety standards for mass-market adoption.
    • Voltage Flexibility: The Pro Model’s 3V–4.5V range outperforms industry benchmarks by 30%, enabling use in diverse power setups.
    • Compact Design: The Pro’s 10x7x2.5mm form factor is 20% thinner than competitors, ideal for wearable tech.

  2. Version Selection Guidance:

    • Base Model: Best for basic applications like entry-level smartphones or appliances requiring fixed 3V operation.
    • Advanced Model: Targets mid-tier devices needing adjustable voltage (e.g., IoT sensors or smart home systems).
    • Pro Model: Suited for industrial or high-end consumer devices (e.g., automotive controls, medical equipment) demanding extended durability and slim form factors.

With the Pro Model’s 30,000-hour lifespan, you can ensure reliable performance in 24/7 operational environments. Pair its wide voltage range with its ultra-thin design to create sleek, durable products that exceed user expectations.

Note: "" denotes a 30% improvement over industry-standard durability benchmarks.

Frequently asked questions

  • Which 3V mobile phone buzzer model is best for low-power devices like key beepers?

  • How do I ensure the longevity of a small and thin mobile phone buzzer?

  • What’s the difference between piezoelectric and electromagnetic buzzers in mobile devices?

  • Can I customize the voltage or mounting options for the 2700Hz key beeper?

  • Is the 3V reflowable buzzer CE-certified for global use?

  • Why does the mobile phone buzzer use a 2700Hz frequency?

  • How do I mount the small and thin buzzer securely on a circuit board?

  • What applications are best suited for this reflowable key beeper?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Voltage FlexibilityMobile devices, IoT gadgetsRated Voltage: 3V/3.6V/4.5V (IEC 60950-1 compliance) ▲
Industry: 3V only		Supports multi-device compatibility (e.g., smartphones, wearables)Higher-voltage models may require voltage regulators for 3V systems
Frequency PrecisionKeyboards, wearable alertsOperating Frequency: 2700Hz ±5% (ISO 80000-1) ▲
Industry: 2000–2500Hz		Sharp tone clarity for tactile feedback (e.g., button presses)Fixed frequency limits customization for niche applications
Certification ComplianceGlobal consumer electronicsCertifications: CE (EMC Directive 2014/30/EU) ▲
Industry: CE only		Meets EU safety/EMC standards for easy market entryAdvanced versions may require additional certifications (e.g., FCC, RoHS)
Thermal ResistanceAutomotive, industrial controlsReflow Soldering Temp: 260°C (IEC 60068-2-55) ▲
Industry: 240°C		Survives high-temperature assembly lines (e.g., automotive PCBs)Higher temps may reduce lifespan in extreme environments
Acoustic PerformanceSmart home devices, alarmsSound Pressure Level: 75 dB @ 10cm (IEC 61672-1) ▲
Industry: 65–70 dB		Clear alerts for medium-distance notifications (e.g., doorbells)Insufficient for loud environments (e.g., factories)
Physical DurabilityWearables, handheld devicesVibration Endurance: 10M cycles (MIL-STD-810H) ▲
Industry: 5M cycles		Withstands frequent use in fitness trackers or gaming controllersHeavier than non-industrial-grade buzzers

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