Buzzer Module for Heltec WiFi LoRa 32 (V4) Expansion Kit

Name: Buzzer Module for Heltec WiFi LoRa 32 (V4) Expansion Kit
Brand: Heltec
SKU: L003089
Price: 9.99 USD
Availability: InStock

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Buzzer module for Heltec WiFi LoRa 32 development board, black PCB with electronic components.

Buzzer module for Heltec WiFi LoRa 32 V4, black PCB with connector pins, IoT expansion kit

Buzzer Module for Heltec WiFi LoRa 32 (V4) Expansion Kit

$9.99 USD

1. Native V4 Compatibility – Designed specifically for Heltec WiFi LoRa 32 (V4) Expansion Kit.

2. Plug-and-Play Integration – Direct B2B connector installation, no additional wiring required.

3. Reliable Audio Output – Stable tone generation for alerts and system notifications.

4. Low Power Design – Optimized for battery-powered IoT and embedded systems.

5. Compact Form Factor – Lightweight and space-efficient module design.

Buzzer Module for Heltec WiFi LoRa 32 (V4) Expansion Kit

The Buzzer Module is a dedicated audio feedback accessory designed for the Heltec WiFi LoRa 32 (V4) ecosystem.
It enables clear sound alerts, status notifications, and event signaling for embedded and IoT applications.
With direct B2B interface connectivity, the module offers true plug-and-play integration, eliminating wiring complexity and ensuring stable electrical and mechanical performance.

⚠️ Important Note: This module is exclusively compatible with the Heltec WiFi LoRa 32 (V4) Expansion Kit ecosystem is not compatible with other Heltec or ESP32 boards.

Package Includes

1 × Buzzer Module

Specification

Item	Specification
Product	Buzzer Module
Compatibility	For Heltec WiFi LoRa 32 (V 4) Expansion Kit
Operating Voltage	1 ~ 25 V
Operating Current	Max. 5mA (at 3V)
Resonant Frequency	4000 Hz
Capacitance	12000 ±30% pF (100Hz, 1V)
Sound Pressure Level	≥ 65 dB (measured at 10 cm, 3V)
Oprating Temp.	-40°C to 85°C
Storage Temp.	-40°C to 85°C
Dimensions	22.20 × 10.40 × 3.00 mm
Application	IoT devices, Mesh network, Smart home automation indicators

Warranty & After-Sales

Many of our products are handcrafted, which may result in minor variations or imperfections. If you experience any quality-related issues withinone year of purchase, we will offer afull refund or a replacement shipment. Please contact our support team with photos or videos of the issue, and we will assist you accordingly.

Technical Support & Resources

Buzzer Module for Heltec WiFi LoRa 32 (V4) Expansion Kit 1

Product Manual Download

Buzzer Module for Heltec WiFi LoRa 32 (V4) Expansion Kit 2

Certification

Buzzer Module for Heltec WiFi LoRa 32 (V4) Expansion Kit 3

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For most countries, expedited shipping delivery time is approximately 5-7 business days.

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6.How long does it take to receive a refund?

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However, your bank may take 1-3 business days to complete the transaction, meaning the refund may not appear in your account immediately and could take a few business days to reflect.