# Bluetooth Modules

> Bluetooth modules for wireless communication: HC-05, HC-06, BLE, beacons, stereo audio modules and Bluetooth amplifiers.

- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Category page: https://sigmanortec.ro/en/bluetooth-modules
- Category: Mechatronics and IoT > Sensors and Modules > Bluetooth Modules
- Prices: RON, VAT included; prices and stock as of 2026-10-22 01:32 (Europe/Bucharest)

## Products (19)

### Bluetooth proximity switch module, with relay, XY-MB02YF, 5V
- Page: https://sigmanortec.ro/en/bluetooth-proximity-switch-module-with-relay-xy-mb02yf-5v
- Details: https://sigmanortec.ro/en/llms/p/2432.md
- Price: 74.51 RON
- Availability: In stock; 1-2 zile
- Reference: 88253 · EAN: 5944778073154
- Specifications: Model: XY-MB02YF; Communication interface: Bluetooth; Supply voltage: 5 V; Output type: Releu

Smart proximity switch with Bluetooth BLE, automatically activates a bistable relay when the phone connects and turns off the load after leaving range or disabling Bluetooth. Works without an app, compatible with iOS and Android, has very low power consumption thanks to the latching relay, supports control of up to 10A, and allows advanced settings via AT commands over UART.
The XY-MB02YF module is an intelligent proximity switch that automatically detects the user’s presence via a Bluetooth connection and operates a bistable (latching) relay to control a load circuit.

### Bluetooth 5.0 Beacon Module, HolyIOT, 21014
- Page: https://sigmanortec.ro/en/bluetooth-50-beacon-module-holyiot-21014
- Details: https://sigmanortec.ro/en/llms/p/2160.md
- Price: 117.16 RON
- Availability: In stock; 1-2 zile
- Reference: 9991 · EAN: 5946920103658

Bluetooth 5.0 Beacon Module HolyIOT 21014, based on the Nordic nRF52810 chip, with a transmission range of up to 50 m in open space. Compact, waterproof IP67 housing, built-in accelerometer for motion detection, configuration via the HolyIOT Beacon app. Powered by a CR2032 battery (not included), with a battery life of up to 180 days. Compatible with iOS 7.0+ and Android 4.3+. Dimensions: 30 mm x 8.4 mm, weight 6.5 g.

### Beacon module, Bluetooth 4.0, NRF51822, 2-3.3V
- Page: https://sigmanortec.ro/en/beacon-module-bluetooth-40-nrf51822-2-33v
- Details: https://sigmanortec.ro/en/llms/p/1968.md
- Price: 88.58 RON
- Availability: Out of stock
- Reference: 9990 · EAN: 5941472210656
- Specifications: Input Voltage: 2 - 3.3 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.

Bluetooth 4.0 beacon based on NRF51822 for proximity identification and location in iBeacon, smart home, wearable or tracking applications. It operates at 2-3.3V with CR2032 battery, has ultra low standby consumption for long autonomy, integrated PCB antenna and communication range of up to 30 m in open space.
The NRF51822 module is a highly energy-efficient wireless Bluetooth 4.0 Beacon device ideal for a wide variety of applications, including iBeacon systems, wearables, electronic games, and smart home control.
Thanks to the BEacon technology used, it can be used for localization within the range of the signal.
Its firmware also meets Apple's iBeacon technical standards.

### Bluetooth module HC-05, original
- Page: https://sigmanortec.ro/en/bluetooth-module-hc-05-original
- Details: https://sigmanortec.ro/en/llms/p/1589.md
- Price: 50.82 RON
- Availability: In stock; 1-2 zile
- Reference: 9482 · EAN: 5945690412205

Original HC-05 Bluetooth module for wireless serial communication with Arduino and other development boards. Operates in Master or Slave mode, USART TTL communication, configurable via AT Command Mode. Default baud rate 9600 bps, supply voltage 3.6-6V, RX pin logic voltage 3.3VDC, current consumption 30mA. Uses the original HC-05 chip, firmware 4.0-20190728, IEEE 802.15.1, FHSS.

### Audio module Bluetooth 5.0, BLE, VHM-314, Stereo, MP3
- Page: https://sigmanortec.ro/en/audio-module-bluetooth-50-ble-vhm-314-stereo-mp3
- Details: https://sigmanortec.ro/en/llms/p/1535.md
- Price: 11.39 RON
- Availability: In stock; 1-2 zile
- Reference: 9425 · EAN: 5948483264104

Bluetooth 5.0 audio module for stereo MP3 playback, ideal for DIY projects and integration into speakers or car systems. Offers AUX output on 3.5 mm jack with 2 channels L and R, stable connection up to 15 m and blue LED indicator for status. Works directly with 3.7 V lithium battery and includes charging circuit, flexible power supply to 5 V including via Type C plug.
Bluetooth audio module, version 5.0, VHM-314, 2-channel output, equipped with 3.5mm jack for AUX output.
It has a blue status indicator and can be used directly with a 3.7V lithium battery, the module having a lithium charging circuit.
Power can be supplied from 5V, from the battery or via the Type C connector.

### Bluetooth 4.1 BLE Audio Module, Stereo, Aux-In, Type-C
- Page: https://sigmanortec.ro/en/bluetooth-41-ble-audio-module-stereo-aux-in-type-c
- Details: https://sigmanortec.ro/en/llms/p/1409.md
- Price: 11.75 RON
- Availability: In stock; 1-2 zile
- Reference: 9303 · EAN: 5943788222149

Bluetooth 4.1 BLE audio receiver module with stereo two-channel output via AUX-IN or LGR. Supports A2DP, AVCTP, AVTDP, AVRCP and HFP. Powered at 5VDC via Type-C or 3.7V Li-ion battery. Dimensions: 30 x 32 x 7.5mm. Can be used to add Bluetooth functionality to any audio playback device with AUX-IN.

### Bluetooth BLE 5.0 module, HM-18
- Page: https://sigmanortec.ro/en/bluetooth-ble-50-module-hm-18
- Details: https://sigmanortec.ro/en/llms/p/1350.md
- Price: 60.72 RON
- Availability: In stock; 1-2 zile
- Reference: 9237 · EAN: 5940630174373

Bluetooth BLE 5.0 module (HM-18) based on the TI CC2640R2F chip, compatible with Arduino and other development boards, Android and iOS phones. Works as both Master and Slave, supports HM-10 type AT commands, with authentication and encryption. Power supply and logic level 3.3V, adjustable RF power, range up to 100m in open field, 2.4GHz frequency, GFSK modulation. Dimensions 27 x 13 x 2mm.

### Audio transmitter module, Bluetooth 5.1, BLE
- Page: https://sigmanortec.ro/en/audio-transmitter-module-bluetooth-51-ble
- Details: https://sigmanortec.ro/en/llms/p/911.md
- Price: 38.31 RON
- Availability: In stock; 1-2 zile
- Reference: 9108 · EAN: 5940292546211

Bluetooth 5.1 BLE audio transmitter with integrated USB sound card, ideal for quickly sending sound from PC, TV or other sources to Bluetooth headphones or speakers, without cables. It offers stable stereo signal through GFSK modulation and antenna on PCB, is powered at 3.3-5V and has easy pairing without password, with support for AT commands via serial for integration into Arduino projects.
Bluetooth audio transmission module integrated with a USB sound card, which adopts Bluetooth version 4.1 to ensure the quality and stability of the transmitted audio signal.
This module can receive any audio signal from any audio source such as computer USB port, phones, TV, AUX, etc...

### Bluetooth 4.2 BLE audio module, stereo, MH-M28
- Page: https://sigmanortec.ro/en/bluetooth-42-ble-audio-module-stereo-mh-m28
- Details: https://sigmanortec.ro/en/llms/p/868.md
- Price: 12.38 RON
- Availability: Out of stock
- Reference: 9062 · EAN: 5945623049560

Bluetooth 4.2 BLE audio module for stereo playback, ideal for DIY projects and active speakers, offers low consumption and stable connection up to 20 m in open space. It is powered by 5V via MicroUSB or 3.7-4.2V from a 1S battery, has audio output on the jack and supports WAV WMA FLAC APE MP3 lossless decoding. The connection is quick, the phone detects it and playback starts immediately.
Bluetooth 4.2 audio module, M28.
It is a module with low current consumption, supports the latest Bluetooth 4.2, two stereo channels for lossless playback. In open spaces, the distance reaches up to 20 meters.
This module has a MicroUSB connection for power and an audio jack …

### Bluetooth 4.2 BLE audio module, stereo, MH-M38, 2x5W
- Page: https://sigmanortec.ro/en/bluetooth-42-ble-audio-module-stereo-mh-m38-2x5w
- Details: https://sigmanortec.ro/en/llms/p/869.md
- Price: 14.91 RON
- Availability: Out of stock
- Reference: 9063 · EAN: 5940240466363
- Specifications: Type: Amplifier; Power: 0 - 20W

Bluetooth 4.2 BLE audio module with integrated 2x5W amplifier, ideal for DIY speakers or compact audio projects, offers lossless stereo playback and quick connection from your phone. It operates at low consumption, has a range of up to 20 m in open space, is powered by MicroUSB at 5V or 3.7-4.2V , comes with included wires for easy assembly.
Bluetooth 4.2 audio module, M38, provided with wires included in the package.
The main difference between this module and other MH-M time modules... is given by the fact that it has an integrated amplifier with 2 channels of 5W.
It is a module with low current consumption, supports the latest Bluetooth 4.2, two stereo channels for lossless playback.

### Bluetooth 4.1 audio receiver module, MicroSD, TF, Card, USB interface, 3.7 - 5V
- Page: https://sigmanortec.ro/en/bluetooth-41-audio-receiver-module-microsd-tf-card-usb-interface-37-5v
- Details: https://sigmanortec.ro/en/llms/p/849.md
- Price: 19.93 RON
- Availability: In stock; 1-2 zile
- Reference: 9036 · EAN: 5944825237898
- Specifications: Supply Voltage: 3.7; Maximum Input Voltage: 5; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.

Quickly transform any speaker or amplifier into a wireless player, with Bluetooth 4.1 and a range of over 15 m for stable streaming. Offers direct playback from USB and MicroSD TF card, compatible with MP3, WAV, APE, FLAC, with 3.5 mm stereo jack output for easy connection. 3.7-5V power supply via Micro-USB, simple control for changing mode, songs and volume, LED indicator for status.

### Bluetooth 4.2 BLE audio module, stereo, MH-M18
- Page: https://sigmanortec.ro/en/bluetooth-42-ble-audio-module-stereo-mh-m18
- Details: https://sigmanortec.ro/en/llms/p/333.md
- Price: 8.05 RON
- Availability: In stock; 1-2 zile
- Reference: 33354 · EAN: 5940425595963

Bluetooth 4.2 BLE audio module for low-power stereo streaming, ideal for DIY projects and portable audio equipment. Offers lossless playback and decoding of WAV WMA FLAC APE MP3, dual channel LR output for direct connection to an amplifier, range up to 20 m in open space, support for volume buttons and Mute function for quick control.
Bluetooth 4.2 audio module, M18.
It is a low power consumption module, supports the latest Bluetooth 4.2, two stereo channels for lossless playback. In open spaces, the distance can reach up to 20 meters.
Supports lossless decoding WAV/WMA/FLAC/APE/MP3, dual channel stereo output.

### Bluetooth 4.2 Module JDY-18
- Page: https://sigmanortec.ro/en/bluetooth-42-module-jdy-18
- Details: https://sigmanortec.ro/en/llms/p/335.md
- Price: 24.20 RON
- Availability: In stock; 1-2 zile
- Reference: 33278 · EAN: 5946129761581

Bluetooth 4.2 Module JDY-18, high speed, for quick integration of wireless connectivity into electronic projects. Enables stable communication between microcontrollers and mobile devices, operates at a supply voltage of 1.8 - 3V, has compact dimensions and fast response in data transmission. Supports Bluetooth 4.2 for low power consumption and extended compatibility.

### Bluetooth module BT 06
- Page: https://sigmanortec.ro/en/bluetooth-module-bt-06
- Details: https://sigmanortec.ro/en/llms/p/336.md
- Price: 22.09 RON
- Availability: In stock; 1-2 zile
- Reference: 33082 · EAN: 5949347054909

Bluetooth module BT06 for Arduino and other development boards, establishes a wireless serial SPP connection via UART interface (also supports SPI, I2C). Uses the BK3432 chip, 16MHz frequency, Bluetooth V3.0 + EDR, class 2, PCB integrated antenna. Power supply 3.6-6V, logic level 3.3V; the RX pin does not tolerate voltages above 3.3V, requiring a voltage divider or level converter.

### Bluetooth module HC-05, compatible
- Page: https://sigmanortec.ro/en/bluetooth-module-hc-05-compatible
- Details: https://sigmanortec.ro/en/llms/p/337.md
- Price: 27.04 RON
- Availability: In stock; 1-2 zile
- Reference: 33274 · EAN: 5941662681976

Bluetooth module for wireless serial communication between Arduino or other boards and phone or PC, works as Master or Slave, fast connection via UART TTL with default setting 9600 bps, supports Data Mode and AT Command Mode for configurations such as name, password and baud rate, 3.6-6V power supply and low consumption, ideal for automation and remote control projects.
The HC-05 Bluetooth module, compatible with Arduino and other development boards. This module is used together with development boards for serial communication via Bluetooth. It can be used both as Master and as Slave.
This version uses the integrated HC-05 compatible chip, a cheaper but reliable version.

### HC-06 Bluetooth module
- Page: https://sigmanortec.ro/en/hc-06-bluetooth-module
- Details: https://sigmanortec.ro/en/llms/p/338.md
- Price: 30.41 RON
- Availability: In stock; 1-2 zile
- Reference: 22091 · EAN: 5949287138745

HC-06 Bluetooth module for RS232 serial communication, compatible with Arduino and other development boards. Operates in Slave mode, supply voltage 3.3-6VDC with 3.3V logic, signal range up to 10 m, Bluetooth 2.0 + EDR, default baudrate 9600. Suitable for wireless data transmission and remote control via phone.

### Amplifier module with 18650, PAM8403, 2x5W output, Bluetooth, Stereo, SD Card
- Page: https://sigmanortec.ro/en/amplifier-module-with-18650-pam8403-2x5w-output-bluetooth-stereo-sd-card
- Details: https://sigmanortec.ro/en/llms/p/1648.md
- Price: 31.36 RON
- Availability: In stock; 1-2 zile
- Reference: 9533 · EAN: 5944558026233
- Specifications: Type: Amplifier; tension: AD; Power: 0 - 20W; Model: PAM8403

Compact solution for audio playback and stereo amplification, offers 2x5W at 4 ohms with PAM8403 class D, plays music via Bluetooth, USB or MicroSD card, is powered at 5V via MicroUSB or from a 18650 battery in a dedicated slot, includes charge management and status LEDs.
Audio playback module with PAM8403 amplifier with 2 channels of 5W each, stereo output 2.0, Stereo D, MicroSD and USB card support.
The module can be powered through the MicroUSB plug or from the 18650 battery inserted in the dedicated slot.

### SIM808 development module, GSM-GPRS-GPS-Bluetooth, 5–25V
- Page: https://sigmanortec.ro/en/sim808-development-module-gsm-gprs-gps-bluetooth-525v
- Details: https://sigmanortec.ro/en/llms/p/2422.md
- Price: 132.69 RON
- Availability: In stock; 1-2 zile
- Reference: 88227 · EAN: 5943328976884
- Specifications: tension: AD; Supply Voltage: 5; Maximum Input Voltage: 25; Chipset: SIM808; Communication interfaces: GSM, GPRS, GPS, Bluetooth

Development board for communications and localization, ideal for IoT and telemetry projects. It offers quad-band GSM GPRS, precise GPS with fast fix, and Bluetooth, with control via AT commands over UART with autobaud. The UART logic level is selectable at 1.25V, 3.3V, or 5V via VMCU, compatible with Arduino, STM32, ESP32, and Raspberry Pi. Includes GSM and GPS antennas.
The SIM808 development module integrates the SIM808 chip from SIMCom, providing quad-band GSM/GPRS communication (850/900/1800/1900 MHz), a GPS receiver with 22 tracking channels and 66 acquisition channels, as well as Bluetooth connectivity.

### Bluetooth 5.0, 2.1, TPA3116 amplifier, 2x50W, 1x100W
- Page: https://sigmanortec.ro/en/bluetooth-50-21-tpa3116-amplifier-2x50w-1x100w
- Details: https://sigmanortec.ro/en/llms/p/1421.md
- Price: 195.35 RON
- Availability: In stock; 1-2 zile
- Reference: 9315 · EAN: 5940214533299
- Specifications: Type: Amplifier; tension: AD; Power: Over 20W

2.1 amplifier with Bluetooth 5.0 and AUX input, ideal for stereo speakers and subwoofer in compact audio projects. Delivers 2x50W for left and right channels and 1x100W for bass, operates at 12-24VDC, includes short-circuit, overcurrent and overheating protections, and copper terminals ensure safe contact and high current.
3-channel amplifier (2.1) with Bluetooth 5.0 and AUX-IN.
This amplifier offers two 50W channels and a 100W Subwoofer channel.
It offers protection against short circuiting, reverse connection and excessive temperature.
The connectors and terminals are made of copper to avoid their overheating and to be able to withstand a higher current.
Specifications:
Model: Zk-MT21 …