1. Product Overview
The ORIA Bluetooth 5.3 Adapter (Model CP326) is a versatile 2-in-1 device functioning as both a Bluetooth transmitter and receiver. It enables wireless audio streaming for a wide range of devices, from traditional wired systems to modern Bluetooth headphones and speakers. Featuring Bluetooth 5.3 technology and aptX Low Latency support, it ensures stable, high-quality audio with minimal delay.

Image: The ORIA Bluetooth 5.3 Adapter, a compact and versatile audio device.
Package Contents
Upon unboxing, please ensure all items are present:
- ORIA Bluetooth Adapter (Model CP326)
- Instruction Manual (this document)
- Type-C Charging Cable
- Airplane Headphone Adapter (dual-pin)
- 3.5mm Female Coupler
- RCA Cable (Red/White to 3.5mm)

Image: The ORIA Bluetooth 5.3 Adapter and its included accessories, such as the Type-C charging cable, airplane adapter, 3.5mm female coupler, and RCA cable.
Video: An overview of the ORIA Bluetooth 5.3 Adapter and its accessories, demonstrating its compact design and included cables for various connections.
2. Device Layout and Controls
Familiarize yourself with the adapter's components and controls:

Image: Labeled diagram showing the TX/RX mode select button, reset button, audio cable, charging indicator, Type-C charging interface, connection lights (1 and 2), function button (M), and power button.
- TX/RX Mode Select Button: Slide to switch between Transmitter (TX) and Receiver (RX) modes.
- Power Button: Press and hold for 4 seconds to power on/off.
- Function Button (M): Used for dual pairing in TX mode.
- Connection Lights (1 & 2): Indicate pairing status and connected devices.
- Charging Indicator: Shows charging status.
- Type-C Charging Interface: For connecting the Type-C charging cable.
- Audio Cable: Integrated 3.5mm audio jack for connecting to audio sources/receivers.
- Reset Button: Small pinhole button to reset the device.
3. Charging the Device
Before initial use, fully charge the ORIA Bluetooth Adapter.
- Connect the provided Type-C charging cable to the adapter's Type-C charging interface.
- Connect the other end of the cable to a USB power source (e.g., computer USB port, USB wall adapter).
- The charging indicator light will illuminate during charging. It will turn off or change color (depending on model) once fully charged.
A full charge takes approximately 2 hours and provides up to 16 hours of use in TX mode or 18 hours in RX mode.

Image: Diagram illustrating the battery life (16 hours TX, 18 hours RX) and charging time (2 hours for 300mAh battery).
4. Operating Modes and Connection
4.1 Transmitter (TX) Mode
In TX mode, the adapter transmits audio from a non-Bluetooth device (e.g., TV, computer, airplane entertainment system) to Bluetooth headphones or speakers.
- Switch to TX Mode: Slide the TX/RX switch to the "TX" position.
- Power On: Press and hold the power button for 4 seconds to turn on the adapter. The indicator light will flash green, indicating pairing mode.
- Connect to Audio Source: Plug the adapter's 3.5mm audio jack into the audio output port of your non-Bluetooth device. For airplane entertainment systems, use the provided airplane headphone adapter if necessary.
- Pair with Bluetooth Headphones/Speakers: Put your Bluetooth headphones or speakers into pairing mode.
- Connect: The adapter will automatically search for and connect to nearby Bluetooth audio devices. Once connected, the indicator light 1 will stay green.
- Dual Pairing (Optional): To connect a second pair of Bluetooth headphones/speakers, press the "M" (Function) button after the first device is connected. Put the second device into pairing mode. Both indicator lights will stay green when two devices are paired.

Image: Visual guide demonstrating the steps to connect the ORIA adapter in Transmitter (TX) mode, including switching the mode, powering on, and pairing with Bluetooth headphones for in-flight entertainment.
Note: Turn off other Bluetooth devices nearby to avoid interference during pairing.

Image: Illustration of the dual pairing capability, allowing two sets of Bluetooth headphones to connect simultaneously to a single audio source via the adapter.

Image: The ORIA Bluetooth 5.3 Adapter connected to an airplane's in-flight entertainment system, enabling wireless audio streaming to personal Bluetooth earbuds.
4.2 Receiver (RX) Mode
In RX mode, the adapter receives audio from a Bluetooth-enabled device (e.g., smartphone, tablet) and outputs it to a non-Bluetooth audio system (e.g., wired speakers, car stereo, HiFi system).
- Switch to RX Mode: Slide the TX/RX switch to the "RX" position.
- Power On: Press and hold the power button for 4 seconds to turn on the adapter. The indicator light will flash green, indicating pairing mode.
- Connect to Audio Receiver: Plug the adapter's 3.5mm audio jack into the AUX input of your wired speakers, car stereo, or HiFi system. Use the provided RCA cable if your audio system requires RCA inputs.
- Pair with Bluetooth Device: On your smartphone, tablet, or other Bluetooth-enabled device, go to Bluetooth settings and search for "BT-20" (or similar device name). Select it to connect.
- Connected: Once connected, the indicator light 1 will stay green.

Image: Visual guide demonstrating the steps to connect the ORIA adapter in Receiver (RX) mode, including switching the mode, powering on, and pairing with a smartphone to stream audio to a wired speaker or car stereo.

Image: The ORIA Bluetooth 5.3 Adapter connected to a wired speaker, receiving audio wirelessly from a smartphone, demonstrating its use in RX mode for home audio or car stereos.

Image: The ORIA Bluetooth 5.3 Adapter connected to wired headphones via a 3.5mm female coupler, allowing a smartphone to stream audio wirelessly to the wired headphones.
5. Advanced Features
5.1 aptX Low Latency Technology
The ORIA Bluetooth 5.3 Adapter supports aptX-Adaptive and aptX Low Latency codecs. When paired with aptX-enabled Bluetooth headphones or speakers, it significantly reduces audio delay, providing synchronized sound for video and gaming. This ensures a smooth and immersive experience.

Image: Diagram illustrating the supported audio codecs (SBC, aptX, aptX-LL, aptX-HD, aptX Adaptive) for both TX and RX modes, highlighting low latency and high-fidelity audio transmission.
Note: Both the adapter and your Bluetooth audio device must support aptX for optimal low latency performance. Not compatible with S-O-N-Y series devices (LDAC).
5.2 Stable Connection
Equipped with a Bluetooth 5.3 chip, the adapter offers faster pairing and stronger interference resistance. It maintains a stable Bluetooth connection up to 100 meters (328 feet) in open environments, ensuring consistent audio whether you are across a room or on the go.

Image: Visual representation of Bluetooth 5.3 technology, emphasizing faster connection and more stable transmission compared to older Bluetooth versions.
6. Maintenance and Care
- Keep the device dry. Avoid exposure to moisture or liquids.
- Clean the device with a soft, dry cloth. Do not use harsh chemicals or abrasive cleaners.
- Store the device in a cool, dry place when not in use.
- Avoid extreme temperatures.
- Do not attempt to disassemble or repair the device yourself. This will void the warranty.
- Always follow battery handling and disposal guidelines for lithium-ion batteries.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not power on. | Low battery. | Charge the device for at least 2 hours using the provided Type-C cable. |
| Cannot pair with Bluetooth device. |
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| Audio quality is poor or delayed. |
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| No sound. |
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| Not compatible with S-O-N-Y devices (LDAC). | Inherent compatibility limitation. | The adapter does not support LDAC codec used by some S-O-N-Y devices. No workaround available. |
8. Specifications
| Feature | Detail |
|---|---|
| Model Name | CP326 |
| Bluetooth Version | Bluetooth 5.3 |
| Supported Standards | aptX-Adaptive, aptX-Low Latency |
| Connectivity Technology | AUX |
| Operating Modes | Transmitter (TX), Receiver (RX) |
| Dual Connection | Yes (2 Bluetooth headphones/speakers simultaneously) |
| Battery Life (TX Mode) | Up to 16 hours |
| Battery Life (RX Mode) | Up to 18 hours |
| Charging Time | Approx. 2 hours (Type-C) |
| Wireless Range | Up to 100 meters (open environment) |
| Item Weight | 0.08 Kilograms |
| Compatible Devices | Car Radios, Cell Phones, Headphones, Home Stereo Systems, Television, Bluetooth-enabled devices |
| Audio Input | 3.5mm AUX |
| Audio Output Mode | Stereo |
| Control Method | Push Button |
9. Warranty and Support
The ORIA Bluetooth 5.3 Adapter (Model CP326) comes with a 1 Year Warranty from the date of purchase.
For technical support, warranty claims, or further assistance, please contact ORIA customer service through the retailer where the product was purchased or visit the official ORIA website.
Please retain your proof of purchase for warranty validation.





