Introduction
The TROND BT-DUO V5.2 is a versatile 2-in-1 wireless audio adapter designed to enhance your audio experience. It functions as both a Bluetooth transmitter (TX) and a Bluetooth receiver (RX), allowing you to seamlessly connect non-Bluetooth devices to Bluetooth headphones or speakers, and vice-versa. Featuring upgraded Bluetooth 5.2 technology and low latency audio codecs, it ensures high-fidelity stereo sound and stable connections for various applications, from home entertainment to on-the-go use.
Product Overview
Figure 1: TROND BT-DUO V5.2 device and accessories.
Key Features:
- Upgrade Bluetooth V5.2: Equipped with an upgraded Bluetooth 5.2 Chip for high-fidelity stereo sound, supporting SBC/AAC/aptX/aptX-LL/aptX-HD/aptX-Adaptive codecs for stronger decoding ability and more stable connection.
- 2-IN-1 Bluetooth Transmitter Receiver:
- TX Mode (Transmitter): Transmits audio from non-Bluetooth devices (e.g., TV, gaming console, projector) via 3.5mm AUX to Bluetooth headphones or speakers.
- RX Mode (Receiver): Connects your smartphone or other Bluetooth devices to wired speakers/earphones through Bluetooth.
- Airplane Bluetooth Adapter: Minimizes audio delay to approximately 40ms, enabling wireless stereo audio streaming from in-flight entertainment systems to up to two AirPods or other Bluetooth headphones.
- Dual Link Functionality: Allows pairing with two Bluetooth headphones or speakers simultaneously, enabling shared audio experiences.
- Portable Design: Weighs only 0.5oz with a compact, round shape, making it easy to store and carry for travel or daily use. Note: RX-mode is recommended for in-car use.
Figure 2: Illustration of TX (Transmitter) and RX (Receiver) modes.
Figure 3: Power button and TX/RX mode switch.
Setup
Charging the Device:
Before first use, fully charge the TROND BT-DUO V5.2 using the included USB charging cable. Connect the micro USB end to the device and the USB-A end to a power source (e.g., computer USB port, USB wall adapter).
Connecting in TX (Transmitter) Mode:
TX mode allows you to transmit audio from non-Bluetooth devices (like TVs, projectors, or gaming consoles) to Bluetooth headphones or speakers.
- Switch to TX Mode: Ensure the TX/RX switch on the side of the device is set to "TX".
- Connect to Audio Source:
- If your audio source has a 3.5mm audio output (headphone jack), use the included 3.5mm male-to-male audio cable to connect the TROND BT-DUO V5.2 to the audio source.
- If your audio source has RCA audio outputs (red and white ports), use the included RCA to 3.5mm adapter cable to connect the TROND BT-DUO V5.2 to the audio source.
Figure 4: TROND BT-DUO V5.2 connected to a TV in TX mode.
- Power On: Press and hold the Multi-Function Button (MFB) for 3 seconds until the LED indicator lights up blue.
- Pair with Bluetooth Headphones/Speakers:
- Put your Bluetooth headphones or speakers into pairing mode (refer to their respective manuals).
- Place the TROND BT-DUO V5.2 close to your Bluetooth audio device. They should automatically pair. The LED indicator will stay blue once successfully paired.
Figure 5: Bluetooth headphones in pairing mode.
Figure 6: TROND BT-DUO V5.2 pairing with Bluetooth headphones.
Connecting in RX (Receiver) Mode:
RX mode allows you to receive audio from Bluetooth-enabled devices (like smartphones or tablets) and play it through wired speakers or headphones.
- Switch to RX Mode: Ensure the TX/RX switch on the side of the device is set to "RX".
- Connect to Wired Audio Device: Use the included 3.5mm male-to-male audio cable to connect the TROND BT-DUO V5.2 to your wired speakers or headphones.
- Power On: Press and hold the Multi-Function Button (MFB) for 3 seconds until the LED indicator lights up blue.
- Pair with Bluetooth Source (e.g., Smartphone):
- On your smartphone or other Bluetooth device, open Bluetooth settings.
- Select "TROND BT-DUO" from the list of available devices to complete the pairing. The LED indicator will stay blue once successfully paired.
Figure 7: TROND BT-DUO V5.2 connected to wired speakers in RX mode.
Operating Instructions
General Operation:
- Power On/Off: Press and hold the Multi-Function Button (MFB) for 3 seconds.
- Mode Switching: Use the TX/RX switch on the side of the device to select Transmitter or Receiver mode. Ensure the device is powered off before switching modes.
- LED Indicator: The LED indicator provides status updates (e.g., blue for paired, flashing blue/red for pairing mode).
Dual Link Functionality (TX Mode):
In TX mode, the TROND BT-DUO V5.2 can connect to two Bluetooth headphones or speakers simultaneously, allowing two users to listen to the same audio source wirelessly.
- Connect the TROND BT-DUO V5.2 to your audio source and pair it with the first Bluetooth headphone/speaker as described in the TX Mode setup.
- Once the first device is paired, put the second Bluetooth headphone/speaker into pairing mode.
- The TROND BT-DUO V5.2 should automatically detect and pair with the second device. Both devices will then receive audio simultaneously.
Figure 8: Dual Link in action, allowing two users to share audio.
Figure 9: Visual representation of Dual Link setup.
Using with In-Flight Entertainment:
The TROND BT-DUO V5.2 is ideal for use with in-flight entertainment systems. Simply plug the device into the airplane's headphone jack (using the appropriate adapter if needed) and pair your Bluetooth headphones. This allows you to enjoy movies or music without disturbing others.
Figure 10: Using the TROND BT-DUO V5.2 on an airplane.
Figure 11: TROND BT-DUO V5.2 can be used with hearing aids for TV audio.
Maintenance
- Cleaning: Use a soft, dry cloth to clean the device. Do not use liquid cleaners or aerosols.
- Storage: Store the device in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: To prolong battery life, avoid fully discharging the device frequently. Charge it regularly, even if not in use for extended periods.
- Handling: Avoid dropping the device or subjecting it to strong impacts.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not power on. | Low battery. | Charge the device fully using the provided USB cable. |
| Cannot pair with Bluetooth device. | Device not in pairing mode; too far apart; interference. | Ensure the TROND BT-DUO V5.2 is in the correct TX/RX mode and pairing mode (flashing LED). Place devices closer. Turn off other Bluetooth devices nearby. |
| No audio or poor audio quality. | Incorrect cable connection; low volume on source/device; incompatible codec. | Check all cable connections. Increase volume on both the audio source and the connected Bluetooth device. Ensure your devices support compatible audio codecs for optimal quality. |
| Audio delay (latency). | Bluetooth codec not optimized for low latency. | Ensure both the TROND BT-DUO V5.2 and your connected Bluetooth device support aptX Low Latency (aptX-LL) for minimal delay. |
Specifications
- Model: BT-DUO V5.2
- Product Dimensions: 1.81 x 1.3 x 0.38 inches
- Item Weight: 3.2 ounces
- Batteries: 1 Lithium Metal battery (included)
- Connectivity Technology: Bluetooth 5.2
- Power Source: Battery Powered
- Manufacturer: TROND
- Country of Origin: China
Safety Information
This device may include standard warnings about potential interference with other wireless devices and battery handling precautions. Always use the device as intended and avoid exposing it to extreme conditions, moisture, or physical damage. Do not attempt to disassemble or modify the device.
Warranty & Support
TROND offers an 18-month warranty for this product, ensuring customer satisfaction and support for any manufacturing defects. For technical assistance, troubleshooting, or warranty claims, please contact TROND Official customer support through their official channels or the retailer where the product was purchased. They are committed to providing detailed support and resolving any issues promptly.
Official Product Videos
TROND Bluetooth 5.2 Transmitter Receiver Overview
This video provides a comprehensive overview of the TROND Bluetooth 5.2 Transmitter Receiver, demonstrating its features and functionalities. It highlights the device's compact design and its ability to switch between transmitter and receiver modes, showcasing its versatility for various audio setups.
