C17 Wireless Sports Headphones User Manual
Customer Service
- Email: service@foycoy.net
- WhatsApp: (+86) 1392 3490 475
- Web: www.foycoy.net
Packing List
- Charging Case [?] x1
- Earphones [?] x1 Pair
- USB-C Cable [?] x1
- Ear Tips [?] x3 Pairs
- User Manual [?] x1
Product Specification
- Model Name: C17
- Bluetooth Version: V5.3
- Support: AAC/A2DP/HFP/HSP/AVRCP
- Transmission Range: 33 feet (without obstacle)
- Charging Port: Type-C
- Wireless Charging Supported: Yes
- Charging Time: About 2 hours
- Battery of each Earbud: 50mAh
- Battery of Charging Case: 600mAh
Product Overview
The charging case features a power display, a Type-C charging port, and charging pins. The earbuds are equipped with built-in microphones, LED indicator lights, touch-sensitive areas, charging contacts, flexible ear hooks, and replaceable ear tips.
Multi-function Operations
For Call
| Operation | Action |
|---|---|
| Answer Call | Double-Click on [Left]/[Right] earbud |
| End Call | Double-Click on [Left]/[Right] earbud |
| Reject Call | Long Press 2s on [Left]/[Right] earbud |
Voice Assistance
| Function | Action |
|---|---|
| Activate Voice Assistant (Siri) | Quick Triple-Click on [Left]/[Right] earbud (* Must be in non-music or standby mode) |
Music Mode
| Function | Action |
|---|---|
| Play/Pause | Quick Double-Click on [Left]/[Right] Earbud |
| Next Track | Quick Triple-Click on [Right] earbud |
| Last Song | Quick Triple-Click on [Left] earbud |
| Volume+ | Long Press & Hold on [Right] earbud |
| Volume - | Long Press & Hold on [Left] earbud |
(* In single mode, the [Right] earbud only supports next song and Volume+, and the [Left] earbud only supports previous song and Volume-.)
Cautions
- Please remove the protective film [?️] before use, otherwise the headphones will not be able to charge.
- Choose suitable Ear Tips [?] and wear correctly to enhance sound quality.
- Please clean the charging contact [⚡] on the earbud and charging pin [?] on the charging case with alcohol wipes [?] if the headphones cannot be charged.
- Please clean the earphones' protective grille [?] if the sound is lower than before.
How to Charge?
Charge by USB-C Cable
Place earbuds into the charging case properly. Use the included USB-C charging cable to connect the charging case to a power supply with a 5V/1A adapter (not included). Charging will begin.
The USB-C charging cable is included in the packaging.
Wireless Charging
Place the charging case on a wireless charging pad (QI certified recommended). The case will start charging. If charging does not begin, reposition the case on the pad.
Wireless charging pad is sold separately.
If an earbud's battery is lower than 10%, you will hear voice prompts "battery low" four times, followed by "power off" in turns. A fully charged charging case can recharge both earbuds for 5-6 times.
LED Power Display
The charging case LED display shows the remaining battery percentage from 0-100%. "0" indicates the case needs charging, while "100" means it is fully charged. When earbuds are charging within the case, the case LEDs will flash down and up, stopping when earbuds are fully charged. The earbud's LED light is red when charging and turns off when fully charged.
How to Power On/Off & Pair?
Automatically Power On/Off & Pairing
Ensure earbuds and charging case have power.
- Take earbuds out of the charging case; they will auto power on and enter pairing mode.
- For first-time pairing: Activate Bluetooth on your device, search for and connect to "C17". For subsequent use, earbuds will automatically connect to your last paired device when taken out.
- If earbuds are not connected to a device for over 5 minutes, they will power off automatically.
- Place earbuds back into the charging case; they will disconnect and power off automatically.
Manually Power On/Off
If earbuds are out of the charging case and powered off, click and hold both earbuds for 2 seconds to power them on. To power off manually, disconnect Bluetooth from your device, then click and hold either earbud for 5 seconds; both earbuds will power off simultaneously.
Pair with Other Device
The C17 headphones automatically connect to the last paired device. To pair with a new device:
- Disconnect "C17" from the previous device.
- Search for and connect to "C17" on the new device.
Mono Mode (Single Earbud Use)
You can use one earbud alone by leaving the other in the charging case. To switch from dual mode, place one earbud in the case. Alternatively, take only one earbud out of the case and search for "C17" on your device to connect in mono mode.
Factory Restore Setting
When to Reset?
- When only one side plays music.
- When "C17" cannot be found on your device.
- When connection issues occur.
How to Reset?
- Delete the "C17" record from your device's Bluetooth menu and deactivate Bluetooth.
- Quick-click on both earbuds 5 times simultaneously to clear pairing records. (During this process, both earbuds' LEDs will flash Red & Blue once, then turn solid Red for 2 seconds.)
- Place both earbuds into the charging case and charge for 1 minute.
- Remove the earbuds to turn them on, activate Bluetooth on your device, and select "C17" to connect.
If the issue persists, repeat the reset steps.
How to Sync Volume on Android?
To prevent potential hearing damage, Android limits the maximum volume for Bluetooth audio devices. If you find the volume too low, you can enable 'Absolute Volume' in Developer Options to control the volume to the full capabilities of your Bluetooth earphones.
Finding Build Number
- Android 4.1 and lower: Developer Options screen is available by default.
- Android 4.2 and higher: Developer Options are hidden. Enable them via Build Number.
- Android 7.1 and lower: Navigate to Settings > About Phone > Build Number.
- Android 8.0.0 and Android 8.1.0: Navigate to Settings > System > About Phone > Build Number.
- Android 9 and higher: Navigate to Settings > About Phone > Build Number.
Enable Developer Options
Locate the Build Number and tap it approximately 7 times in succession. You may need to enter your PIN for verification. A message "You are now a developer" will appear. Return to the Settings menu; Developer Options will be listed as an entry. At the top of the Developer Options screen, you can toggle options.
Enable Absolute Volume
Scroll down to the Networking section. Enable (toggle ON) the Absolute Volume option. Note: The appearance and location of these options may vary depending on your device model.
FCC Caution
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.
Warranty and Support
Foycoy offers a warranty for authentic products. For more products, parts, and accessories, please visit: www.foycoy.net. For any assistance, please contact: service@foycoy.net.






