1. Introduction
The RadioShack Wireless Bluetooth Transmitter Receiver for Car is an innovative device designed to enhance connectivity and audio experience within your vehicle. This compact and versatile Bluetooth adapter allows you to enjoy the convenience of Bluetooth technology, transforming your automobile into a more modern and functional space. It enables wireless music playback, hands-free calling, and offers convenient charging options.

Image 1.1: The RadioShack Wireless Bluetooth Transmitter Receiver.
2. Product Features
- Bluetooth 4.2 Technology: Integrated Bluetooth 4.2 for seamless music streaming to your car's audio system.
- 3.5mm AUX Adapter: Utilizes a 3.5mm auxiliary input for connection with various portable devices, including MP3 players.
- Hands-Free Calling: Allows you to make and answer calls quickly and safely without using your hands.
- Rechargeable Battery: Equipped with a rechargeable battery for extended use.
- USB Charging Port: Features a mini USB port for quick and lasting charging, keeping your mobile devices powered.
- Automatic Power-Off: Includes an automatic power-off function for energy saving.
3. Package Contents
Please check the package for the following items:
- 1 x RadioShack Wireless Bluetooth Transmitter Receiver
- 1 x 3.5mm AUX Adapter
- 1 x USB Charging Cable

Image 3.1: The Bluetooth transmitter receiver along with its 3.5mm AUX adapter and USB charging cable.

Image 3.2: The retail packaging for the RadioShack Bluetooth Transmitter Receiver.
4. Setup and Installation
- Charge the Device: Before first use, fully charge the Bluetooth transmitter receiver using the provided USB charging cable. Connect the USB cable to the device's mini USB port and the other end to a USB power source (e.g., car charger, computer USB port).
- Connect to Car Audio: Insert the 3.5mm AUX adapter into the device's 3.5mm audio jack. Then, plug the 3.5mm AUX adapter into your car's auxiliary input port. Ensure your car's audio system is set to AUX input.
- Power On: Press and hold the multi-function button on the device until the LED indicator lights up, indicating it is powered on and ready for pairing.
- Pair with Your Device:
- On your smartphone, tablet, or other Bluetooth-enabled device, go to the Bluetooth settings.
- Search for available devices. The transmitter receiver should appear as "RadioShack" or a similar name.
- Select the device to pair. Once paired, the LED indicator will change, usually to a solid blue light, confirming the connection.

Image 4.1: The Bluetooth transmitter receiver with the 3.5mm AUX adapter connected.
5. Operating Instructions
5.1 Music Playback
- Once successfully paired, open your preferred music application on your connected device (e.g., Spotify, Apple Music, local MP3 player).
- Start playing music. The audio will be transmitted wirelessly to the RadioShack receiver and played through your car's speakers.
- Control playback (play/pause, skip tracks) directly from your connected device.
5.2 Hands-Free Calling
- Answering Calls: When an incoming call is received, press the multi-function button once to answer the call.
- Ending Calls: During a call, press the multi-function button once to end the call.
- Rejecting Calls: To reject an incoming call, press and hold the multi-function button for a few seconds.
- Redialing: Double-press the multi-function button to redial the last number called.
- Your voice will be picked up by the built-in microphone on the device.

Image 5.1: The Bluetooth transmitter receiver discreetly installed in a car's dashboard, ready for use.
5.3 Power On/Off
- Power On: Press and hold the multi-function button until the LED indicator lights up.
- Power Off: Press and hold the multi-function button until the LED indicator turns off. The device also features an automatic power-off function to conserve energy when not in use or disconnected.
6. 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 battery frequently. Recharge the device regularly, even if not in constant use.
- Avoid Moisture: Keep the device away from water and high humidity.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not power on. | Battery is low or depleted. | Charge the device fully using the USB charging cable. |
| No sound from car speakers. | Incorrect AUX input selected in car; device not paired; volume too low. | Ensure car audio is set to AUX. Verify device is paired. Increase volume on both the device and car audio. |
| Cannot pair with smartphone. | Device is not in pairing mode; Bluetooth is off on smartphone; too many paired devices. | Ensure device is powered on and in pairing mode (blinking LED). Turn Bluetooth off and on again on your smartphone. Delete old Bluetooth connections from your smartphone. |
| Poor audio quality. | Interference; weak signal; low battery. | Move connected device closer to the receiver. Ensure no strong electromagnetic interference. Recharge the device. |
8. Specifications
| Brand | RadioShack |
| Hardware Interface | Bluetooth |
| Compatible Devices | Smartphones, tablets, music players, headphones, MP3 players |
| Special Features | Hands-free calling |
| Audio Input | 3.5mm AUX |
| Audio Output Mode | A2DP |
| Audio Output Type | Auxiliary |
| Voltage | 5 Volts (DC) |
| Power Source | Battery |
| Batteries Required | No |
| Wireless Connection Type | Bluetooth |
| Connector Type | Bluetooth, USB |
| Supported Standards | Bluetooth 4.2 |
| Media Type | MP3 |
| Rechargeable Battery Included | Yes |
| Remote Control Included | No |
| Bluetooth Technology Supported | Yes |
| Package Dimensions | 14.7 x 11.2 x 2.2 cm; 40 g |
9. Warranty and Support
Specific warranty information for this product is not available in the provided data. Please refer to the product packaging, the manufacturer's official website, or your point of purchase for detailed warranty terms and conditions.
For technical support or further assistance, please contact RadioShack customer service through their official channels.





