Introduction
Thank you for choosing the SUNITEC BC990G Bluetooth Car Speaker Handsfree Speakerphone. This device is designed to provide a safe and convenient hands-free communication experience while driving. It features dual 3W speakers for clear audio, supports voice assistants like Siri and Google Assistant, and allows for simultaneous connection to two devices. Please read this manual carefully to ensure proper use and optimal performance of your speakerphone.
Safety Information
To ensure safe operation and prevent damage, please observe the following:
- Avoid interference with other wireless devices.
- Handle the battery properly and avoid exposing the device to extreme temperatures (hot or cold).
- Do not disassemble, repair, or modify the device yourself. Refer to qualified service personnel.
- Keep the device away from water and other liquids.
Package Contents
Verify that all items are present in your package:
- SUNITEC BC990G Bluetooth Car Speaker Unit
- USB-C Charging Cable
- Car Cigarette Charging Adapter
- Metal Clip for Visor Mounting
- User Manual (this document)

Image: The SUNITEC BC990G Bluetooth Car Speaker, USB-C charging cable, and car cigarette charging adapter.
Product Overview
Familiarize yourself with the main components and controls of your SUNITEC BC990G speakerphone.

Image: Top view of the SUNITEC BC990G speakerphone, showing the large call button, volume up/down buttons, and the power switch on the side.
- Call Button: Press to answer/end calls, or activate voice assistant.
- Volume Up (+): Increase speaker volume.
- Volume Down (-): Decrease speaker volume.
- Power Switch: Slide to turn the device ON or OFF.
- Mute Button: Mute/unmute the microphone during a call.
- Charging Port: USB-C port for charging the device.
- Visor Clip Slot: For attaching the magnetic visor clip.
Setup
1. Charging the Device
Before first use, fully charge the speakerphone. The built-in 1500mAh battery provides long standby time and approximately 15 hours of working time on a full charge.
- Connect the USB-C charging cable to the speakerphone's charging port.
- Connect the other end of the USB-C cable to the car cigarette charging adapter or any standard USB power source (e.g., computer USB port, wall adapter).
- The charging indicator light will illuminate. A full charge takes approximately 2.5 hours.
- The indicator light will change or turn off once charging is complete.

Image: The speakerphone highlighting its 1500mAh battery, 2.5 hours charging time, and 15 hours working time.
2. Mounting the Speakerphone
The speakerphone is designed for easy and secure attachment to your car's sun visor using the magnetic clip.
- Insert the metal clip into the slot on the back of the speakerphone until it clicks into place.
- Attach the clip firmly to your car's sun visor. The magnetic design allows for easy detachment when needed, such as for charging or portable use.

Image: A close-up view of the speakerphone's magnetic back and the metal clip, illustrating how they connect.
3. Bluetooth Pairing
Pair your speakerphone with your mobile device for hands-free functionality.
- Ensure the speakerphone is charged and turned OFF.
- Slide the Power Switch to the "ON" position. The speakerphone will enter pairing mode, indicated by a flashing red/blue LED light and an audible prompt.
- On your mobile phone, enable Bluetooth and search for available devices.
- Select "BC990G" from the list of found devices.
- Once successfully paired, the LED light will stop flashing and a confirmation tone will sound. The device will automatically reconnect to your phone when turned on and within range after the initial pairing.

Image: The speakerphone shown connected to two mobile phones, demonstrating its dual-device multipoint connectivity feature.
Operating Instructions
Power On/Off
- Power On: Slide the power switch to "ON". The device will automatically connect to the last paired phone.
- Auto Power On: The speakerphone features motion auto-on. When mounted on the sun visor, it will automatically turn on and connect when you open the car door or start driving.
- Power Off: Slide the power switch to "OFF".

Image: The speakerphone mounted on a car visor, illustrating its auto power-on feature when the car door is opened.
Hands-Free Calling
- Answering a Call: Press the Call Button once.
- Ending a Call: Press the Call Button once during a call.
- Rejecting a Call: Press and hold the Call Button for 2 seconds.
- Redialing Last Number: Double-press the Call Button.
- Adjusting Volume: Use the Volume Up (+) and Volume Down (-) buttons.
- Muting Microphone: Press the Mute Button during a call for private conversations. Press again to unmute.

Image: A finger pressing the mute button on the side of the speakerphone.
Voice Assistant (Siri / Google Assistant)
The speakerphone supports one-touch activation for your phone's voice assistant.
- Activate Voice Assistant: Press the Call Button once when not on a call.
- You can then use voice commands for GPS navigation, making calls, playing music, and more, all hands-free.

Image: The speakerphone mounted on a car visor, with speech bubbles indicating "Hi Siri, play music" and "Hello Google, call Jack," demonstrating voice assistant integration.
Dual Device Connection
The speakerphone can connect to two mobile phones simultaneously, allowing you to manage calls from both devices.
- After pairing the first device, follow the Bluetooth pairing steps again to connect the second device.
- The speakerphone will intelligently switch between devices for incoming calls.
Music Playback
You can stream music from your paired mobile device through the speakerphone's dual 3W stereo speakers.
- Start music playback on your mobile phone. The audio will be routed to the speakerphone.
- Use the Volume Up (+) and Volume Down (-) buttons on the speakerphone to adjust the playback volume.
- Note: Music control (play/pause, skip track) must be done from your mobile phone.

Image: The speakerphone emitting sound waves, emphasizing its loud and clear dual 3W speaker output for GPS navigation and calls.
The speakerphone incorporates DSP noise reduction technology to filter out background noise, ensuring clear calls even in noisy environments.

Image: A graph illustrating the effect of DSP noise cancellation, showing a reduction in background noise levels.
Portable Use
The SUNITEC BC990G can be detached from its visor clip and used as a portable Bluetooth speaker for various scenarios.

Image: The speakerphone placed on a wooden table outdoors, surrounded by people, demonstrating its portable design suitable for multiple scenarios like camping or gatherings.
Maintenance
- Clean the device with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Keep the device away from dust, moisture, and extreme temperatures.
- Store the device in a cool, dry place when not in use for extended periods.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not power on. | Battery is low or depleted. | Charge the device fully. |
| Cannot pair with phone. | Bluetooth is off on phone; device not in pairing mode; too far from phone. | Ensure phone Bluetooth is on. Turn speakerphone off and on again to enter pairing mode. Move phone closer to speakerphone. |
| No audio during calls/music. | Volume too low; not connected; audio routed to phone. | Increase volume on both speakerphone and phone. Re-establish Bluetooth connection. Check phone's audio output settings. |
| Poor call quality/echo. | Environmental noise; microphone too far. | Ensure DSP noise reduction is active. Speak clearly towards the device. |
| Auto-on feature not working. | Device not securely mounted; no motion detected. | Ensure the device is firmly clipped to the sun visor. |
Specifications
| Feature | Detail |
|---|---|
| Model Number | BC990G |
| Brand | SUNITEC |
| Connectivity Technology | Bluetooth |
| Power Source | Battery Powered |
| Battery Capacity | 1500mAh |
| Charging Time | Approx. 2.5 hours |
| Working Time | Approx. 15 hours |
| Standby Time | Up to 1000 hours |
| Speaker Output | Dual 3W Stereo Speakers |
| Noise Reduction | DSP Technology |
| Voice Assistant Support | Siri, Google Assistant |
| Multipoint Connectivity | Connects two phones simultaneously |
| Mounting Type | Magnetic Visor Clip |
| Item Weight | 4.2 ounces (120 Grams) |
| Dimensions | 6.69 x 6.02 x 1.69 inches |
Warranty and Support
SUNITEC provides a warranty for this product. For detailed warranty information, FAQs, and further support, please visit the official SUNITEC website:
You may also contact SUNITEC customer support directly via the contact information provided on their website.




