VAORLO KB9P/KB9 Bluetooth 5.2 Audio Transmitter User Manual

1. Introduction

The VAORLO KB9P/KB9 is a versatile Bluetooth 5.2 audio transmitter designed to add wireless audio capabilities to devices without built-in Bluetooth. It allows you to connect your TV, computer, laptop, game consoles (Nintendo Switch, PS4/PS5), projectors, or power amplifiers to Bluetooth headphones or speakers. Featuring advanced audio codecs like apt-Adaptive, apt-HD, apt-LL, and SBC, it ensures high-quality sound with low latency. The device supports dual input modes (USB and 3.5mm AUX) and multi-point connection, enabling two Bluetooth audio devices to be connected simultaneously.

2. Product Features

• High-Definition Microphone Support: Enables call functions when connected to compatible Bluetooth headsets/speakers.
• Enhanced Transmission: Built-in ceramic antenna provides a stable transmission radius of up to 25 meters without obstacles.
• Advanced Bluetooth 5.2 Chip: Features a Qualcomm QCC304x chip for 40ms low latency (in apt-LL mode) and up to 600kbps data rate.
• Multiple Audio Codec Support: Compatible with apt-Adaptive, apt-HD, apt-LL, aptX, and SBC codecs.
• Dual Input Modes: Supports both USB and 3.5mm AUX audio input.
• Multi-point Connection: Connects to two Bluetooth headsets or speakers simultaneously.
• Driver-Free & Plug and Play: No software installation required for most operating systems.
• Wide Compatibility: Suitable for TV, Computer, Projector, Power Amplifier, TV Box, Bluetooth Headset/Speaker, Nintendo Switch, PS4/PS4 SLIM/PS4 Pro/PS5, Xbox Game Console.
• Volume Enhancement: Provides 2x volume enhancement for Nintendo Switch and PS4/PS5 consoles.
• Automatic Memory Connection: Remembers previous connections for quick re-pairing.
• Broad OS Support: Compatible with IOS, MAC, Android, LINUX, XP, WIN7-11 systems.

3. Package Contents

The standard package includes the following items. Depending on the specific set purchased (e.g., TV TypeC SET, Deluxe SET), additional accessories may be included.

• 1x VAORLO Bluetooth 5.2 Audio Transmitter (KB9/KB9P)
• 1x User's Manual
• 1x Retail Package
• Optional (depending on set):
• USB Extension Cable
• USB to Type-C OTG Connector
• AUX 3.5mm Audio Cable
• 3.5mm to RCA Cable

4. Setup

4.1 General Connection

The VAORLO Bluetooth audio transmitter is designed for driver-free, plug-and-play operation. Simply connect it to your audio source device.

4.2 Connecting to TV, PC, Laptop, or Game Console

1. USB Connection: Plug the transmitter directly into an available USB port on your TV, computer, laptop, Nintendo Switch dock, PS4/PS5 console, or TV Box. The device will be recognized automatically.
2. AUX Connection (for devices without USB audio output or older TVs): If your device has a 3.5mm AUX headphone jack or RCA audio output, connect the transmitter using the provided 3.5mm AUX audio cable (and 3.5mm to RCA cable if needed). Ensure the transmitter is also powered via USB.

4.3 Pairing with Bluetooth Devices

1. Plug the VAORLO transmitter into your audio source.
2. Put your Bluetooth headset or speaker into pairing mode (refer to your audio device's manual for specific instructions).
3. The transmitter will automatically search for and connect to nearby Bluetooth audio devices. The indicator light will change to solid blue once connected.

4.4 PC Assistant Program (Optional)

For advanced users, a professional PC Assistant Program is available. This software allows you to manually switch between different audio codecs (SBC, apt-HD, apt-LL, apt-Adaptive) and manage pairing modes. This is particularly useful if your Bluetooth headset/speaker supports multiple audio encodings and you wish to optimize for specific latency or quality settings.

5. Operating Instructions

5.1 Basic Operation

Once connected and paired, the transmitter will automatically transmit audio to your Bluetooth device. For subsequent uses, the transmitter will automatically remember and reconnect to the last paired device.

5.2 Multi-point Connection

The VAORLO KB9/KB9P models support connecting two Bluetooth headsets or speakers simultaneously. Once one device is paired, put the second device into pairing mode, and the transmitter will attempt to connect to it.

5.3 Volume Enhancement (for PS4/PS5)

For PS4, PS4 SLIM, PS4 Pro, and PS5 consoles, the transmitter can provide a 2x volume enhancement. To activate this, long-press the touch control area on the transmitter for 4 seconds. This feature is also suitable for Airpods Series.

5.4 Indicator Light Description

The multi-function indicator light on the transmitter provides visual feedback on its status:

• Back Connection Mode: Slow flashing blue light.
• Pairing Mode: Red and blue lights flash alternately.
• Connection Successful: Blue light is always on.
• Clear Pair Memory: After a long press for 8 seconds, the white light flashes three times.

LED Function Definition by Audio Codec:

• Adaptive: Yellow and Green lights.
• apt-LL (Low Latency): Red light every 5 seconds.
• apt-HD (High Definition): Green light.
• aptX: Purple light.
• SBC: Blue light always on.
• Connect 2 Devices: White light.

6. Maintenance

• Keep the device dry and clean. Avoid exposure to liquids or excessive moisture.
• Store the transmitter in a cool, dry place away from direct sunlight and extreme temperatures.
• Do not attempt to disassemble or modify the device, as this will void any potential support.
• Clean the exterior with a soft, dry cloth. Avoid using harsh chemicals or abrasive materials.

7. Troubleshooting

7.1 No Audio or Connection Issues

• Check Power and Connection: Ensure the transmitter is securely plugged into a powered USB port or correctly connected via AUX.
• Verify Pairing Mode: Make sure your Bluetooth headset/speaker is in pairing mode.
• Observe Indicator Lights: Refer to Section 5.4 for indicator light meanings to diagnose the connection status.
• Clear Pairing Memory: If connection issues persist, clear the transmitter's pairing memory by long-pressing the touch area for 8 seconds until the white light flashes three times, then re-pair.

7.2 Compatibility Issues (16Bit vs 24Bit)

The KB9 model supports 16Bit audio, which is widely compatible with most Android Box/Android TV devices. The KB9P model supports 16-24Bit audio. However, some Android TV network boxes may not be optimized for 24Bit and might not play audio when using 24Bit devices. If you experience no audio with a KB9P on an Android TV, consider checking your TV's audio settings or ensuring compatibility with 24Bit audio.

7.3 Low Volume

If the volume is too low, especially when connected to game consoles like PS4/PS5, activate the 2x volume enhancement feature by long-pressing the touch control area for 4 seconds.

7.4 Device Functionality

Please note that this is a Bluetooth audio transmitter, not a receiver. It is designed solely for audio transmission from a source device to Bluetooth headphones/speakers. It cannot be used for connecting keyboards, mice, or for file transfer.

8. Specifications

9. User Tips

• The VAORLO transmitter is highly versatile and can be used with a wide range of devices including TVs, computers, projectors, power amplifiers, TV boxes, Nintendo Switch series, PS4/PS4 SLIM/PS4 Pro/PS5, and Xbox game consoles.
• It offers enhanced volume and an improved audio experience when connected to various devices, particularly game consoles.
• If you require advanced configuration or troubleshooting for your computer, a dedicated PC Assistant software is available. Please contact the seller for access to this program.
• For optimal TV connection, especially when using a Bluetooth headset, consider purchasing a 'KB9-16bit TV Set' or 'Deluxe SET' variant. These sets often include accessories that can help ensure a stronger and more stable signal when the adapter is placed outside the TV.

10. Warranty and Support

The manufacturer checks the quality of goods before shipment. If you encounter any unexpected problems with the product, please contact the seller directly. For product quality issues, buyers may be required to provide photos or videos as evidence. Man-made damage is not covered.