YYK-750 Wireless Sports Headphones

Product Photo

The product features a charging case containing two wireless earbuds. The charging case has indicator lights and a USB Type-C charging port. Each earbud has a microphone, an indicator light, and a multifunction button (MFB). The charging case also indicates the battery level.

Wireless Pairing

To pair the headphones:

1. Ensure the headset is off. Press and hold the multifunction button (MFB) for approximately 3 seconds until the blue light flashes. The red and blue lights will then flash alternately, indicating pairing mode.
2. On your mobile device (phone, tablet, or computer), turn on the Wireless function.
3. Search for nearby Wireless devices and select "YYK-750".
4. If prompted, enter the password "0000" (though most devices do not require a password).
5. Once paired and connected, the indicator light on the headset will turn off, signifying a successful connection.

Pairing with PC/Laptop:

1. Access your computer's settings and navigate to Devices > Wireless and Other Devices.
2. Turn on Wireless and select "Add Wireless or Other Device".
3. Search for "YYK-750" and pair/connect.
4. Note: If your computer lacks Wireless functionality, a Wireless adapter and driver may be required.

MFB Button Controls

The Multifunction Button (MFB) on each earbud controls various functions:

• Pause / Play Music: Double-tap the left or right MFB button.
• Last Song: Press and hold the left ear MFB button for 1 second.
• Next Song: Press and hold the right ear MFB button for 1 second.
• Answer / Hang Up Call: Double-tap the left or right MFB button.
• Refuse Call: Press and hold the left or right ear MFB button for 1 second.
• Cancel Call: Double-tap the left or right MFB button.
• Activate Siri: Triple-tap the left or right ear MFB button.
• Deactivate Siri: Double-tap the left or right ear MFB button.
• Volume Up: Triple-tap the left ear MFB button while music is playing.
• Volume Down: Triple-tap the right ear MFB button while music is playing.

ON/OFF Switch

• Power On: The headset automatically turns on when removed from the charging compartment. Alternatively, press and hold the left and right ear MFB buttons for 3 seconds.
• Power Off: Place the earbuds into the charging compartment; they will automatically turn off and begin charging.

How to Reset

With the headset off, double-click the MFB button and hold for 2 seconds. Place the headset into the charging compartment to turn it off and begin charging. The headset will turn on automatically when removed, completing the reset.

How to Recharge the Earbuds

1. Place the earbuds in the charging bin. They will automatically turn off and charge. The charging bin's display will show the current power level.
2. The red indicator light on the earbud will turn off when fully charged.

Product Specifications

Mobile Phone Transmission Range

The transmission distance of the mobile phone is approximately 10m under normal signal conditions. The signal may be interrupted at distances of 15m.

Waterproof Specification

The headphones are waterproof for daily activities such as sweating, rain, face-washing, and showering. They are not suitable for swimming or submersion in water, as Wireless signals cannot transmit underwater.

How to Recharge the Charging Bin

1. Use a mobile phone adapter or a Type-C cable connected to a computer or other charger with a Type-C interface to recharge the bin.
2. The digital display on the charging bin shows the recharging progress. A level of 100 indicates a full charge.

Attention & Troubleshooting

General Precautions:

• Avoid disassembling or reassembling the product to prevent failure or fire.
• Keep away from corrosive liquids.
• Avoid extreme temperatures (below 10°C or above 60°C).
• Keep out of reach of children and pets.
• Avoid contact with sharp objects.
• Do not use during thunderstorms or heavy rain.
• If not in use for over a month, charge regularly.
• Not suitable for swimming or diving due to Wireless signal limitations in water.

Why cannot I detect Wireless? Why Wireless pairing failure?

• Ensure the Wireless range (10m) is not obstructed and the mobile phone is close to the earbuds.
• Disconnect from other devices if already paired.
• Reboot the Wireless device and reset the earbuds.

Why do the earbuds produce no sound? Or, why does the music playing stop?

• Ensure the charging cable and mobile phone charger are in good condition and properly connected.
• Ensure the earbuds are properly seated in the charging bin for connection.
• Clean the earbud charging points with alcohol or a cloth if stained with dust or sweat.
• Wipe sweat from earbuds before placing them in the charging bin.

Why do the earbuds turn off automatically?

• Ensure the battery level is sufficient.
• The earbuds will automatically disconnect after 10 minutes of inactivity. Place them back in the charging bin to restart.

Why cannot I recharge the charging bin?

• Ensure the charging cable and mobile phone charger are in good condition and properly connected.
• Ensure the earbuds are properly seated in the charging bin for connection.
• Clean the earbud charging points with alcohol or a cloth if stained with dust or sweat.
• Recharge when the "Low Battery" prompt appears. Recharge the charging bin when its display shows "10". Avoid completely draining the battery of the earbuds and charging bin to prolong battery life.

Safety Precautions

• Keep away from high temperature, high humidity, and corrosive environments.
• Avoid bumping, falling, bending, or soaking.
• Do not disassemble the earbuds or charging bin.
• Do not overcharge for extended periods.
• Discontinue use if discomfort or pain occurs.
• Use only certified DC 5V-1A adapters.
• Repeated charging and discharging will naturally reduce battery performance over time.

Packing Contents

• Earbuds x 2
• Charger x 1
• Type-C charging cable x 1
• User Manual x 1