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KN319 Bluetooth 4.2 2 in 1 Receiver and Transmitter RCA 3.5MM AUX Jack

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AI Summary
Bluetooth and NRF Modules for everyday users

The KN319 Bluetooth 4.2 2 in 1 Receiver and Transmitter RCA 3.5MM AUX Jack is a value-for-money bluetooth and nrf modules designed for everyday users. It features Bluetooth Version: 5 and Model No. / Name: KN319.

wireless convenience
₹1,016
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Total: ₹1,016
Buying tip: A well-rounded choice at a fair price. Recommended for most buyers.
Estimated delivery: 25 Aug8 Sept
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Quick Specs

Bluetooth Version: 5
Model No. / Name: KN319
Color: Black
Batteries Required: Built-in 200mAh Rechargeable Li-polymer battery
Charging time: about 2 hours
Charging Interface: Micro USB 5V

Ideal For

Hobbyist flyingOutdoor recreationKids entertainment
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SKU: robu-1794487Category: Bluetooth and NRF Modules

About This Product

The KN319 Bluetooth 4.2 2 in 1 Receiver and Transmitter RCA 3.5MM AUX Jack is a value-for-money bluetooth and nrf modules designed for everyday users. It delivers reliable performance at an accessible price.

Key Specifications

  • Bluetooth Version: 5 — faster pairing, longer range, and lower battery draw
  • Model No. / Name: KN319
  • Color: Black
  • Batteries Required: Built-in 200mAh Rechargeable Li-polymer battery — keeps you powered without frequent recharging
  • Charging time: about 2 hours —
  • Charging Interface: Micro USB 5V —
  • Product Size: 44 * 44 * 12mm
  • Package Size: 11.2 * 7.6 * 2.3cm

Why Buy from Elecvora?

Elecvora sources this product directly, cutting out multiple middlemen. Every order includes free shipping, a 15-day return policy, and secure payment via Razorpay.

This is a KN319 Bluetooth 4.2 2-in-1 Receiver and Transmitter RCA 3.5MM AUX Jack. As a BT Audio Transmitter, it can be connected to the audio devices without BT function via the included 3.5mm Audio Plug, changing these audio devices into BT-enabled audio devices, and making it work with BT-enabled Headset and Speaker. As a BT Audio Receiver, KN319 can change the traditional Car Stereo systems and Home Audio Systems into BT-enabled ones and is easy to pair with BT-enabled smartphones, laptops, tablets, etc. With this product, you can greatly enjoy music from your phone, laptop, or tablet without the hassle of cables. This 2 in 1 BT Transmitter and receiver will give you much fun and convenience.

Note: Box shown in image does not comes with product.

Features:

  1. Receiver Mode: Change the traditional Car Stereo system or Home Audio System into a BT-enabled ones. After paired, play music wirelessly from your BT-enabled Smart Phones, Laptop, Tablet, and more.
  2. Transmitter Mode: Connected to the audio devices (such as MP3, MP4, TV PC, etc.) without BT function, changing them into BT-enabled ones, and making it work with BT-enabled Headset and Speaker.
  3. Strong Compatibility: With the included 3.5mm cable and 3.5mm to 2RCA cable, this Receiver Transmitter adapter can be widely used on your computer, laptop, home stereo system, headphones, smartphone, MP3 player, CD player, etc.
  4. Low Power Consumption:  Built-in 200mAh rechargeable battery ensures 5-6 hours of working time, and you can enjoy wireless music all day long. Easy connection, no driver needed, plug and play.
  5. Convenient to Use: Switch between transmitter and receiver modes with the simple flick of a switch. Weighs only 18g (0.63oz), easy to carry in your backpack or laptop bag and take it on the go.
  6. Protocol Supported: A2DP, AVRCP (receiver mode only)
  7. Transmission Distance: 10m / 33ft (open space)
  8. Continuous Use Time: 6 hours (Receiver Mode) / 5 hours (Transmitter Mode)

Package Includes:

1 x BT Audio Transmitter & Receiver

1 x 3.5mm Audio Cable

1 x RCA Cable

1 x USB Charging Cable

Setup Guide

1
Identify the pins
Locate VCC (power), GND (ground), and data pins (SDA/SCL for I2C, MOSI/MISO for SPI, or TX/RX for UART). Refer to the pinout diagram on the product page.
2
Wire to your microcontroller
Connect VCC to 3.3V or 5V (check the module spec), GND to GND, and data pins to the appropriate GPIO pins on your Arduino or Raspberry Pi.
3
Install libraries
In Arduino IDE, go to Sketch → Include Library → Manage Libraries and search for the sensor library. Install the recommended version.
4
Upload example sketch
Open File → Examples → [library name] → Basic Example. Upload to your board and open Serial Monitor to view output.
5
Calibrate if needed
Some sensors (temperature, humidity, distance) may need a short warm-up period or calibration. Run the calibration sketch if provided.