Product Overview
The Retoo Bluetooth USB 5.0 EDR Adapter is a versatile 2-in-1 device functioning as both a Bluetooth transmitter (TX) and receiver (RX). It enables wireless audio streaming for various devices, including PCs, laptops, TVs, headphones, and car audio systems. This adapter features Bluetooth 5.0 + EDR for fast and efficient data transfer, and includes a built-in microphone for hands-free calling in RX mode.
Image: The Retoo Bluetooth USB 5.0 EDR Adapter, shown with a 3.5mm audio cable and illustrations of compatible devices like laptops, tablets, smartphones, headphones, and speakers.
Package Contents
- Retoo Bluetooth USB 5.0 EDR Adapter
- 3.5mm Audio Cable (Mini-jack)
- User Manual
Image: Contents of the package, including the Bluetooth adapter, a 3.5mm audio cable, and the user manual.
Setup and Operation
Switching Between TX (Transmitter) and RX (Receiver) Modes
The adapter features a switch to select between TX (Transmit) and RX (Receive) modes. Ensure the correct mode is selected for your intended use.
Image: A close-up view of the adapter highlighting the TX/RX mode selection switch.
TX Mode (Transmitter) Instructions
In TX mode, the adapter transmits audio signals from your non-Bluetooth devices (e.g., TV, PC) to Bluetooth-enabled headphones or speakers.
- Connect the 3.5mm AUX cable to the Bluetooth adapter's audio input.
- Connect the other end of the AUX cable to the audio output (e.g., headphone jack) of your device (e.g., TV, PC).
- Set the switch on the adapter to the TX position.
- Plug the adapter into a USB power source.
- Ensure your Bluetooth headphones or speakers are not paired with any other device and are in pairing mode.
- The adapter will automatically connect to the available Bluetooth headphones or speakers.
Image: The Bluetooth adapter connected to a television, indicating wireless audio transmission to a pair of headphones.
Image: A user playing a video game on a TV while wearing headphones, with the Bluetooth adapter visible, illustrating its use for wireless game audio.
RX Mode (Receiver) Instructions
In RX mode, the adapter receives audio signals from Bluetooth-enabled devices (e.g., smartphone, tablet) and outputs them to non-Bluetooth speakers or car audio systems.
- Connect the 3.5mm AUX cable to the adapter's audio output.
- Connect the other end of the AUX cable to the audio input (e.g., AUX-in) of your speakers or car audio system.
- Set the switch on the adapter to the RX position.
- Plug the adapter into a USB power source.
- On your mobile phone or other Bluetooth-enabled device, search for the Bluetooth adapter in the Bluetooth settings and pair with it.
- Once paired, you can stream audio wirelessly to your connected speakers or car radio.
Image: The Bluetooth adapter connected to a laptop, demonstrating its ability to stream audio to both external wired speakers and wireless headphones.
Image: The Bluetooth adapter displayed alongside a range of compatible devices, emphasizing its versatility across different platforms.
Hands-Free Calling (RX Mode)
The integrated microphone allows the adapter to be used as a hands-free kit, particularly useful in a car. With built-in noise reduction, your voice will be transmitted clearly. The device offers a range of up to 10 meters, allowing passengers to participate in calls.
Specifications
| Brand | Retoo |
| Model Number | E297 |
| Color | Black |
| Connectivity Technology | AUX, Bluetooth |
| Wireless Communication Standard | Bluetooth 5.0 + EDR |
| Power Source | USB Powered |
| Material | Plastic |
| Product Dimensions (L x W x H) | 45mm x 20mm x 11mm |
| Item Weight | 12 Grams |
| Compatible Devices | Headphones, Speakers, Car Radios, Smartphones, Televisions |
| Operating Systems | Android, Car System, Linux, MacOS, Windows |
| Rechargeable Battery | No |
Image: Technical drawing illustrating the dimensions (length, width, height) of the Bluetooth adapter in millimeters.
Troubleshooting
- No Audio / Connection Issues:
- Ensure the adapter is correctly plugged into a USB power source.
- Verify the 3.5mm AUX cable is securely connected to both the adapter and the audio device.
- Check that the TX/RX switch is in the correct position for your intended use.
- For TX mode, ensure your Bluetooth headphones/speakers are in pairing mode and not connected to another device.
- For RX mode, ensure your smartphone/device's Bluetooth is on and actively searching for the adapter.
- Try restarting both the adapter (by unplugging and replugging) and the connected audio device.
- Poor Audio Quality:
- Ensure the adapter and connected Bluetooth device are within the effective range (up to 10 meters).
- Minimize obstacles between the adapter and the connected device.
- Check the volume levels on both the source device and the receiving device.
Maintenance
The Retoo Bluetooth USB 5.0 EDR Adapter requires minimal maintenance. Keep the device clean and dry. Avoid exposing it to extreme temperatures or humidity. Do not attempt to disassemble the device, as this may void any potential warranty and cause damage.
Warranty and Support
Information regarding specific warranty terms and customer support contact details is not provided in this manual. Please refer to the product packaging or the retailer's website for warranty information and support contacts.