VAORLO KB8P/KB9P USB Bluetooth 5.2 Audio Transmitter User Manual

1. Introduction

The VAORLO KB8P/KB9P USB Bluetooth 5.2 Audio Transmitter is a versatile device designed to add Bluetooth audio transmission capabilities to various non-Bluetooth devices. Featuring a QCC3040 chip, it supports Adaptive, HD, LL (Low Latency), and SBC audio codecs, providing high-quality sound with minimal delay. This transmitter is driver-free, plug-and-play, and compatible with a wide range of systems and devices, including PCs, game consoles, and smart TVs.

Note: This device is an audio transmitter only and cannot be used as a receiver or for data transfer (e.g., keyboard, mouse, file transfer).

Figure 1: VAORLO KB8P/KB9P USB Bluetooth 5.2 Audio Transmitter with various connectors.

2. Setup Instructions

The VAORLO Bluetooth Audio Transmitter is designed for driver-free, plug-and-play operation. It automatically remembers connections after the first successful pairing.

2.1 Initial Connection

1. Plug the USB Bluetooth Audio Transmitter into an available USB port on your device (e.g., PC, game console, TV Box).
2. Ensure your Bluetooth headset or speaker is in pairing mode.
3. The transmitter will automatically search for and connect to nearby Bluetooth audio devices.
4. Once connected, the indicator light on the transmitter will turn solid blue.

Figure 2: Plug and Play operation for PC/Laptop, showing the transmitter connected to a laptop.

2.2 Model Differences (KB8 vs. KB8P / KB9 vs. KB9P)

The KB8 and KB9 models lock the sampling rate to 16Bit 48Khz, offering wider compatibility, especially with some Android TVs/Boxes that may not be optimized for 24Bit audio. The KB8P and KB9P models offer an adjustable sampling rate of 16-24Bit 48-96Khz, providing higher sound quality if your connected Bluetooth headset/speaker supports it. KB8P and KB9P may not be compatible with all Android TV/Box devices.

Figure 3: Guide on choosing between KB8 and KB8P based on sampling rate and compatibility.

2.3 Connecting to Specific Devices

2.3.1 PC/Laptop

Driver-free for Windows XP/7/8/10/11, Linux, Android, and macOS. For advanced settings and codec selection, use the PC Assistant Program (contact customer service for software).

Figure 4: Plug and Play for PC, showing the transmitter connected to a laptop with the PC Assistant Program interface.

2.3.2 Game Consoles (PS4/PS5, Nintendo Switch)

The transmitter is optimized for PS4/PS5, providing a 2x volume enhancement. For Nintendo Switch, it supports TV mode (direct USB connection) and handheld mode (requires a Type-C adapter for 'SW Set').

Figure 5: Universal setup for Nintendo Switch, illustrating TV mode and handheld mode connections.

2.3.3 Android Box/Android TV

KB8 (16Bit) is generally compatible with Android Box/Android TV. KB8P (24Bit) may not be compatible with all Android Box/Android TV models. Android systems 4.2 and above typically support driver-free, automatic pairing.

Figure 6: Compatibility with Android Box/Android TV, showing the transmitter connected to an Android TV box.

2.4 Package Contents

The standard edition includes the USB Bluetooth Audio Transmitter and a user manual. Other sets (Type-C SET, TV SET, TV TypeC SET) may include additional accessories like a 1M USB extension cable or a USB to Type-C OTG connector.

Figure 7: Example packing list for different product variations.

3. Operating Instructions

3.1 Indicator Light Description

The transmitter features multiple indicator lights to show its status:

• Back connection mode: Slow flashing blue light.
• Pairing mode: Red and blue lights flash alternately.
• Connection successful: Blue light is always on.

In addition, different indicators are displayed according to the audio codes supported by the connected headset:

• Adaptive: Solid red indicator.
• LL (Low Latency): Red indicator flashes twice every 5 seconds.
• HD (High Definition): Solid green indicator.
• aptX: Two green lights flash every 5 seconds.
• SBC: Blue light is always on.

Figure 8: Diagram showing the transmitter's interface and detailed indicator light descriptions.

3.2 Using the PC Assistant Program

For advanced control over audio encoding and other settings, a PC Assistant Program is available. This program allows you to select the desired audio mode (Low Latency or High Quality) if your Bluetooth headset/speaker supports multiple encodings.

Figure 9: Screenshot of the Dongle Assistant v1.6 showing options for Adaptive audio mode selection.

3.3 Call Functionality

The transmitter supports high-definition microphone input, enabling call functions when connected to a computer or laptop, provided your Bluetooth headset or speaker also has a microphone.

3.4 Multi-point Connection (KB9/KB9P only)

The KB9 and KB9P models feature USB+AUX dual input and support multi-point connection, allowing you to connect two Bluetooth earphones or Bluetooth speakers simultaneously.

4. Maintenance

To ensure the longevity and optimal performance of your VAORLO Bluetooth Audio Transmitter:

• Keep the device clean and free from dust. Use a soft, dry cloth for cleaning.
• Avoid exposing the device to extreme temperatures, humidity, or direct sunlight.
• Do not attempt to disassemble or repair the device yourself, as this will void any potential warranty.
• Store the device in a safe place when not in use to prevent physical damage.

5. Troubleshooting

Q: The transmitter does not appear in my phone/computer's Bluetooth device list.

A: This is normal. The VAORLO transmitter is designed to automatically connect to Bluetooth audio devices. It will not appear as a discoverable device on your phone, computer, or TV. Simply ensure your Bluetooth headset/speaker is in pairing mode and place it close to the transmitter for automatic connection.

Q: I am experiencing compatibility issues with my Android TV/Box.

A: The KB8P and KB9P models (24Bit) may not be compatible with all Android Box/Android TV devices. Some Android TV boxes also do not support 24Bit audio. If you encounter issues, consider using a KB8 or KB9 (16Bit) model, which offers wider compatibility. If problems persist, please consult customer service.

Q: The audio quality is not as expected or latency is high.

A: Ensure your Bluetooth headset/speaker supports the desired audio codecs (e.g., aptX-LL for lowest latency, aptX-HD for high quality). If your device supports multiple encodings, use the PC Assistant Program to manually set the encoding you need. Lower latency is generally better for gaming, while higher code rates improve sound quality.

Q: Can I use this for my Bluetooth keyboard/mouse or file transfer?

A: No, this is an audio transmitter only. It is designed exclusively for audio transmission and does not support keyboard, mouse, or file transfer functionalities.

6. Specifications

Figure 10: Comparison of audio latency and transmission code rates for different codecs.

7. User Tips

• Volume Enhancement: The transmitter supports 2x volume enhancement, particularly noticeable on PS4/PS5 consoles, for a louder audio experience.
• Wide Compatibility: Enjoy wireless audio on a broad range of devices including PS4/PS5, Xbox, Nintendo Switch, PCs, TVs, and Android Boxes.
• High-Quality Audio: With support for Adaptive, HD, LL, and SBC codecs, you can achieve improved audio quality and low latency for both music and gaming.
• Multi-Brand Headset Support: The device is compatible with major brands of Bluetooth headsets, including Apple, Huawei, Xiaomi, Samsung, and Sony.
• System Versatility: Works seamlessly across various operating systems like iOS, macOS, Android, Linux, and Windows (7-10, XP).

8. Warranty and Support

VAORLO is committed to providing high-quality products. All products are tested before shipment to ensure they meet quality standards.

For any technical assistance, questions regarding the PC Assistant Program, or if you encounter issues not covered in this manual, please contact VAORLO customer service. Do not attempt to repair the device yourself.