SGNICS C16 Bluetooth 5.3 Headphones User Manual

1. Introduction

Thank you for choosing the SGNICS C16 Bluetooth 5.3 Headphones. This manual provides detailed instructions on how to set up, operate, and maintain your new headphones to ensure optimal performance and longevity. Please read this manual thoroughly before using the product.

2. Product Overview & Features

The SGNICS C16 headphones are designed for an immersive audio experience with advanced features for active lifestyles.

Image: SGNICS C16 Bluetooth Headphones, showcasing the earbuds within their charging case. The earbuds feature ear hooks and green LED indicators.

Key Features:

• Bluetooth 5.3 True Wireless Design: Utilizes the latest Bluetooth 5.3 technology for stable, fast, and low-latency audio transmission, ensuring seamless synchronization between audio and video.
• Fit and Comfort Design with IP7 Waterproofing: Engineered with an ergonomic design, flexible ear hooks, and three sizes of ear tips (S/M/L) for a secure and comfortable fit during workouts. The IP7 waterproof rating protects against sweat and water.


Image: Illustration demonstrating the ergonomic design, flexible earhook, and three included ear tip sizes (S, M, L) for a secure and comfortable fit. A person is shown wearing the headphones during an outdoor activity, with water splashing, highlighting the waterproof feature.



Image: Two SGNICS C16 headphones with water droplets splashing around them, emphasizing their IP7 water and sweat resistance.

• 40H Playback with Dual LED Display: Offers up to 8 hours of playtime on a single charge, with the charging case providing an additional 32 hours of power. The case features a dual digital LED display to show battery levels for both the case and individual earbuds.


Image: SGNICS C16 headphones in their charging case, highlighting USB-C fast charging, 8 hours of playtime per charge, and 5 additional charges from the case for a total of 40 hours.



Image: Close-up view of the SGNICS C16 charging case and earbuds, showing the dual LED power display. One display indicates the case's battery level (1-100), and the other shows the charging status of the left and right headphones.

• HD Stereo Audio & Clear Call: Equipped with 6mm composite diaphragms for powerful bass and clear vocals. Microphones are designed to reduce wind noise, ensuring clear phone calls and video chats.


Image: A detailed cross-section of an earbud driver, illustrating the 6mm immersive drivers that provide generous, balanced, and clear sound for HIFI stereo audio.

• Intelligent Touch Control: Features a capacitive touch interface on the earbuds for easy control of volume, track skipping, calls, and voice assistant activation.


Image: An illustration showing the touch control area on the SGNICS C16 earbud, with icons indicating various functions such as power on/off, microphone, call answer/end, volume control, and track navigation.

3. Setup Guide

3.1 Initial Charging

1. Place both earbuds into the charging case.
2. Connect the charging case to a USB power source using a compatible USB-C cable.
3. The LED display on the charging case will show the charging progress. Ensure the case and earbuds are fully charged before first use.

3.2 Pairing with Your Device

1. Open the charging case. The earbuds will automatically power on and enter pairing mode.
2. On your device (smartphone, tablet, PC), enable Bluetooth.
3. Search for available Bluetooth devices and select "C16" from the list.
4. Once connected, the earbuds will indicate successful pairing (e.g., a voice prompt or LED indicator change).
5. If pairing fails, turn off Bluetooth on your device, place the earbuds back in the case, close it, then reopen and try again.

3.3 Fitting the Earbuds

1. Choose the ear tips (S/M/L) that provide the most comfortable and secure fit for your ears. A good seal is crucial for optimal sound quality and bass response.
2. Insert the earbud into your ear canal and gently rotate it until it feels snug.
3. Adjust the flexible ear hook over your ear to secure the earbud in place, especially during physical activity.

4. Operating Instructions

4.1 Power On/Off

• Power On: Open the charging case, and the earbuds will automatically power on. Alternatively, press and hold the touch control area on both earbuds for 3 seconds.
• Power Off: Place the earbuds back into the charging case and close the lid. Alternatively, press and hold the touch control area on both earbuds for 5 seconds.

4.2 Music Control

• Play/Pause: Single tap the touch control area on either earbud.
• Next Track: Double tap the touch control area on the right earbud.
• Previous Track: Double tap the touch control area on the left earbud.
• Volume Up: Triple tap the touch control area on the right earbud.
• Volume Down: Triple tap the touch control area on the left earbud.

4.3 Call Control

• Answer/End Call: Single tap the touch control area on either earbud.
• Reject Call: Press and hold the touch control area on either earbud for 2 seconds.

4.4 Voice Assistant

• Activate Voice Assistant (Siri, Google Assistant, etc.): Press and hold the touch control area on either earbud for 3 seconds.

4.5 Charging the Earbuds and Case

• Earbuds Charging: Place the earbuds into the charging case. They will automatically begin charging. The LED display on the case will show their individual charging status.
• Case Charging: Connect the charging case to a USB power adapter (not included) or a computer's USB port using the provided USB-C cable. The digital LED display will flash from 1 to 100, indicating the charging progress.

5. Maintenance

5.1 Cleaning

• Regularly clean the earbuds, especially the ear tips and charging contacts, with a soft, dry, lint-free cloth.
• Do not use abrasive cleaners, alcohol, or chemical solvents.
• Ensure the earbuds and charging case are dry before placing them back into the case or charging.

5.2 Storage

• When not in use, store the earbuds in their charging case to protect them and keep them charged.
• Store the product in a cool, dry place, away from extreme temperatures and direct sunlight.

5.3 Battery Care

• To preserve battery life, charge the earbuds and case regularly, even if not used frequently.
• Avoid fully depleting the battery for extended periods.

6. Troubleshooting

7. Specifications

• Model: C16
• Wireless Communication Technology: Bluetooth 5.3
• Ear Placement: Over Ear (with earhook)
• Control Type: Touch Control
• Water Resistance Level: IP7 Waterproof
• Playtime (Earbuds): Up to 8 hours per charge
• Total Playtime with Charging Case: Up to 40 hours
• Compatible Devices: Tablets, Cell Phones, Computers, Smart Phones
• Special Feature: Microphone Feature, Sports & Exercise
• Color: Black
• Manufacturer: Shenzhen HUOER Technology.,LTD

8. Warranty & Support

This product is covered by a standard return policy, allowing for refund or replacement within 30 days of purchase. For specific warranty details or to inquire about extended protection plans, please refer to your purchase documentation or contact the seller directly.

Customer Support:

For any questions, technical assistance, or support inquiries regarding your SGNICS C16 headphones, please contact the seller, SGNICS, through the platform where the purchase was made. Provide your order number and a detailed description of the issue for prompt assistance.