SENTRY Bluetooth® PRO Audio Headphones

Introduction

This manual provides detailed instructions for the safe and efficient use of your SENTRY Bluetooth® PRO Audio Headphones. Please read this manual thoroughly before using the product and retain it for future reference.

Safety Information

• Do not expose the headphones to extreme temperatures, humidity, or corrosive substances.
• Avoid dropping or subjecting the headphones to strong impacts.
• Do not disassemble or attempt to repair the headphones yourself. This will void the warranty.
• Clean the headphones with a soft, dry cloth. Do not use liquid cleaners.
• Prolonged listening at high volume levels may cause hearing damage. Adjust volume to a safe level.

Package Contents

• SENTRY Bluetooth® PRO Audio Headphones (Model: BT2000)
• USB Charging Cable
• Audio Cable (3.5mm)
• User Manual

Product Overview

Familiarize yourself with the various parts and controls of your SENTRY Bluetooth® PRO Audio Headphones.

Figure 1: SENTRY Bluetooth® PRO Audio Headphones. This image displays the complete headset, highlighting its over-ear design and foldable headband.

Figure 2: Right Earcup Controls. This detailed view shows the power/play/pause button, volume up/next track button, volume down/previous track button, charging port, and 3.5mm audio jack.

Controls and Ports:

• Power/Play/Pause Button: Used to power the headphones on/off, play/pause music, and answer/end calls.
• Volume Up / Next Track Button: Short press for volume up, long press for next track.
• Volume Down / Previous Track Button: Short press for volume down, long press for previous track.
• Microphone: Built-in for hands-free calling.
• Charging Port: For connecting the USB charging cable.
• 3.5mm Audio Jack: For wired connection to audio devices.
• LED Indicator: Displays power, charging, and Bluetooth pairing status.

Setup

1. Charging the Headphones

1. Connect the small end of the USB charging cable to the charging port on the headphones.
2. Connect the large end of the USB charging cable to a USB power adapter (not included) or a computer's USB port.
3. The LED indicator will illuminate during charging. It will change color or turn off once fully charged (approximately 2 hours).
4. A full charge provides approximately 10 hours of playback time.

2. Bluetooth Pairing

1. Ensure the headphones are fully charged.
2. Press and hold the Power/Play/Pause button for approximately 3-5 seconds until the LED indicator flashes blue and red alternately. This indicates pairing mode.
3. On your Bluetooth-enabled device (smartphone, tablet, laptop), go to the Bluetooth settings and enable Bluetooth.
4. Search for available devices. The headphones will appear as "SENTRY BT2000" or similar.
5. Select "SENTRY BT2000" to connect. Once successfully paired, the LED indicator will flash blue slowly or remain solid blue.
6. If prompted for a password, enter "0000".
7. The headphones will automatically attempt to reconnect to the last paired device when powered on.

Operating Instructions

Power On/Off

• Power On: Press and hold the Power/Play/Pause button for 3 seconds. The LED indicator will flash blue.
• Power Off: Press and hold the Power/Play/Pause button for 3 seconds. The LED indicator will turn off.

Music Playback

• Play/Pause: Short press the Power/Play/Pause button.
• Next Track: Long press the Volume Up / Next Track button.
• Previous Track: Long press the Volume Down / Previous Track button.
• Volume Up: Short press the Volume Up / Next Track button.
• Volume Down: Short press the Volume Down / Previous Track button.

Call Management

• Answer/End Call: Short press the Power/Play/Pause button during an incoming call.
• Reject Call: Long press the Power/Play/Pause button during an incoming call.
• Redial Last Number: Double-press the Power/Play/Pause button.

Wired Mode (Optional)

You can use the headphones with a 3.5mm audio cable (included) for a wired connection, even if the battery is depleted. Simply plug one end into the headphone's 3.5mm audio jack and the other end into your audio device's headphone jack.

Maintenance

• Cleaning: Use a soft, dry, lint-free cloth to clean the ear pads and surfaces of the headphones. Do not use abrasive cleaners, alcohol, or chemical solvents.
• Storage: When not in use, store the headphones in a cool, dry place, away from direct sunlight and extreme temperatures. The folding headband allows for compact storage.
• Battery Care: To prolong battery life, avoid fully discharging the battery frequently. Charge the headphones regularly, even if not in use for extended periods.

Troubleshooting

Specifications

Warranty and Support

SENTRY products are designed and manufactured to the highest quality standards. For information regarding warranty coverage, technical support, or service inquiries, please refer to the warranty card included in your product packaging or visit the official SENTRY website.

Please retain your proof of purchase for warranty claims.