Monster GT27 OWS Bluetooth Earphones User Manual

1. Product Overview

The Monster GT27 OWS (Open Wireless Stereo) Bluetooth Earphones are designed for comfortable, open-ear listening with high-fidelity stereo sound and smart call noise reduction. They feature an ergonomic design, lightweight construction, and multi-device compatibility.

Figure 1: Monster GT27 Black Earbuds and Charging Case

Figure 2: Monster GT27 Beige Earbuds and Charging Case

Package Contents:

• Monster GT27 OWS Bluetooth Earphones (Left and Right)
• Charging Case
• USB Type-C Charging Cable
• User Manual (this document)

Figure 3: Contents of the Monster GT27 package

2. Setup and Charging

2.1 Initial Charging

1. Place both earphones into the charging case.
2. Connect the provided USB Type-C charging cable to the charging case and a 5V/1A power source.
3. The charging box's red light will flash slowly during charging. The green light will stay on when fully charged.
4. The earphones will be fully charged in approximately 1.5 hours. The charging case fully charges in about 2 hours.

Charging Box Indicator Light:

• When earphones are placed in the charging box, the green light will flash for 1 second.
• A green breathing light will continue to flash while the charging box is charging the earphones.
• You can check the remaining battery capacity of the charging box by pressing the button on its back side.

2.2 Pairing and Connection

1. Open the cover of the charging case and take out both earphones. The left and right earphones will automatically turn on and pair with each other.
2. On your mobile phone or device, go to the Bluetooth settings.
3. Search for available Bluetooth devices. The name of the earphones (e.g., "Monster GT27") will appear in the list.
4. Click on the earphone's name to establish the connection.
5. Once connected, the earphones are ready for use.

Automatic Reconnection: After initial pairing, simply open the charging case and take out the earphones. They will automatically turn on and connect to the last paired device.

3. Operating Instructions

The Monster GT27 earphones feature touch controls on each earbud (MFB - Multi-Function Button).

Figure 4: Touch Control Functions

3.1 Power On/Off

• Power On: Open the charging case cover and take out the earphones. They will power on automatically.
• Power Off: Place both earphones back into the charging case and close the cover. They will power off automatically and begin charging.
• Manual Power Off: Press and hold the left/right earphone MFB for 5 seconds.

3.2 Music Playback Controls

• Play/Pause: Double-click the left/right earphone MFB.
• Previous Song: Long press the left earphone MFB for 2 seconds.
• Next Song: Long press the right earphone MFB for 2 seconds.

3.3 Call Management

• Answer a Call: Double-click the left/right earphone MFB.
• Hang Up a Call: Double-click the left/right earphone MFB.
• Reject a Call: Long press the left/right earphone MFB for 2 seconds.

3.4 Volume Adjustment

• Volume Up: Click the right earphone MFB.
• Volume Down: Click the left earphone MFB.

3.5 Voice Assistant

• Summon Voice Assistant (Siri for iOS): Triple-click the left/right earphone MFB.

4. Specifications

Figure 5: Detailed Product Parameters

Figure 6: Internal components, highlighting the imported titanium diaphragm speaker for clear treble and powerful bass.

Figure 7: ENC Noise Reduction Function: Vocal effects improved by 80%, Spatial sound effects improved by 85%, Fidelity improved by 98%.

5. Maintenance and Care

• Do not handle the product violently or press it with heavy objects.
• Keep the earphones and charging case away from high temperatures and high humidity environments.
• Avoid exposing the product to water or liquids, as it is not waterproof.
• Clean the earphones and charging case regularly with a soft, dry cloth.

6. Troubleshooting

Common Issues and Solutions:

• No Sound or Disconnection: Stay away from WiFi, routers, and other high-frequency transmitting equipment. These can affect the signal reception of the Bluetooth device, leading to sound issues or disconnections.
• Earphones not pairing: Ensure both earphones are taken out of the case simultaneously and are within close proximity to your device during pairing. If issues persist, try resetting your device's Bluetooth settings and re-pairing.
• Charging issues: Ensure you are using a 5V/1A charging cable or the attached charging cable. Check that the cable is securely connected to both the charging case and the power source.

7. User Tips

• Comfortable Fit: The earphones are very lightweight (7.5g per earbud) and designed for an ergonomic, open-ear fit. You should barely feel them when wearing them for extended periods.
• Sound Quality: Expect crisp high and medium tones. While bass is present and clear, these open-ear earbuds are not designed for heavy, booming bass.
• Call Clarity: The microphone performs well in reducing surrounding noise, ensuring clear phone calls even in moderately noisy environments.
• Situational Awareness: Due to their open-ear design, these earbuds allow you to remain aware of your surroundings, which is beneficial for outdoor activities or when you need to hear ambient sounds.
• Sports Use: The secure fit makes them suitable for sports and active use.

8. Warranty and Support

For detailed warranty information and customer support, please refer to the official user manual PDF provided by the manufacturer. A digital version of the user manual can be accessed here.

If you encounter any issues not covered in this manual, please contact the seller or manufacturer's customer service for assistance.