SENTRY OSH Over Ear Bluetooth Wireless Headphones User Manual

Introduction

The Sentry Over the Ear Wireless Active Noise Cancelling Headphones are designed to provide an immersive audio experience with advanced noise cancellation. These headphones offer up to -20dB of noise reduction, ensuring a focused listening environment. Featuring Bluetooth V5.3 for seamless wireless connectivity, a long-lasting battery, and a comfortable, foldable design, they are ideal for travel and daily use. Integrated controls allow for easy management of audio and calls.

Figure 1: SENTRY OSH Over Ear Bluetooth Wireless Headphones and Carrying Case.

What's in the Box

Upon opening your SENTRY OSH headphone package, you will find the following items:

• SENTRY OSH Over Ear Bluetooth Wireless Headphones
• USB C Charging Wire
• Protective Carrying Case
• User Manual (this document)

Figure 2: The included hard shell carrying case provides protection and portability for your headphones.

Product Features

• Advanced Noise Cancellation

  These headphones are equipped with Active Noise Cancellation (ANC) technology, effectively blocking out ambient noise by up to -20dB. This feature allows for an isolated listening experience, minimizing distractions from your surroundings. The ANC is particularly effective at reducing mid to high-frequency sounds.

  

  Figure 3: Key features including Active Noise Cancellation and Bluetooth V5.3.

  

  Figure 4: Awareness Mode allows you to stay connected to your surroundings while enjoying audio.

• Wireless Connectivity (Bluetooth V5.3)

  Experience seamless audio streaming with Bluetooth V5.3, offering up to 30 feet of stable, unbreakable connectivity. No application is required for pairing, ensuring a straightforward connection process with your devices. On-ear buttons provide convenient control over volume, track skipping, and call management.

  

  Figure 5: Bluetooth 5.3 technology ensures stable and efficient wireless connection.

• Extended Battery Life

  The integrated 400mAh battery provides up to 22 hours of uninterrupted listening with Active Noise Cancellation enabled. A full charge requires approximately 3 hours using the included USB-C charging cable.

  

  Figure 6: Enjoy long listening sessions with the extended battery life and quick charging capability.

• Comfortable and Compact Design

  Ergonomic over-ear cups and an adjustable headband ensure a snug and comfortable fit, even during prolonged listening periods. The bi-folding design allows the headphones to be compactly stored in the included carrying case, making them highly portable.

  

  Figure 7: Studio-grade earpads provide comfort for all-day wear.

• Deep Bass Technology

  Experience vibrant soundscapes with deep bass, clear vocals, and balanced stereo sound that brings your favorite music to life.

  

  Figure 8: Deep Bass Technology enhances your audio experience.

Setup

1. Charging the Headphones

Before first use, fully charge your SENTRY OSH headphones. Connect the included USB-C charging cable to the charging port on the headphones and the other end to a compatible USB power source (e.g., computer USB port, wall adapter). The charging indicator light will show the charging status. A full charge takes approximately 3 hours.

2. Powering On/Off

To power on the headphones, press and hold the Power button (located on the right earcup) for a few seconds until you hear an audible prompt or see the indicator light illuminate. To power off, press and hold the Power button again until the headphones shut down.

3. Bluetooth Pairing

1. Ensure the headphones are powered off.
2. Press and hold the Power button until the indicator light flashes rapidly, indicating pairing mode.
3. On your device (smartphone, tablet, laptop), navigate to the Bluetooth settings.
4. Search for available devices and select "SENTRY OSH" from the list.
5. Once connected, the indicator light on the headphones will change, and you will hear a confirmation sound.

The headphones will automatically reconnect to the last paired device when powered on, if the device's Bluetooth is active and within range.

Figure 9: Easy pairing technology ensures quick and hassle-free connection to your devices.

Operating Instructions

Audio Playback Controls

• Play/Pause: Press the Multi-function button (often the power button or a dedicated play/pause button) once.
• Next Track: Press and hold the Volume Up button.
• Previous Track: Press and hold the Volume Down button.
• Volume Up: Short press the Volume Up button.
• Volume Down: Short press the Volume Down button.

Call Management

• Answer/End Call: Press the Multi-function button once.
• Reject Call: Press and hold the Multi-function button for 2 seconds.
• Redial Last Number: Double-press the Multi-function button.

Active Noise Cancellation (ANC) Control

To activate or deactivate the Active Noise Cancellation feature, locate the dedicated ANC button (often on one of the earcups, as indicated in the video description). Press this button to toggle ANC on or off. You may hear a slight change in ambient sound when toggling this feature.

Maintenance

• Cleaning: Use a soft, dry cloth to clean the headphones. Do not use abrasive cleaners or solvents.
• Storage: When not in use, store the headphones in their protective carrying case to prevent damage. Avoid exposing them to extreme temperatures or humidity.
• Battery Care: To prolong battery life, avoid fully discharging the headphones frequently. Charge them regularly, even if not in constant use.
• Water Resistance: The headphones are water resistant. However, avoid submerging them in water or exposing them to heavy rain.

Troubleshooting

Specifications

Warranty & Support

90-Day Guarantee

Sentry Industries offers an extensive 90-day warranty on all products. This guarantee provides free replacement for defective or damaged products within 90 days of purchase.

Customer Support

Sentry Industries is an American company with over 60 years in business. For assistance or inquiries, a customer support line is operated out of our New York office to ensure you receive the help you need.

For more information, visit the official SENTRY store: SENTRY Store on Amazon