សេចក្តីផ្តើម
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.
តើមានអ្វីនៅក្នុងប្រអប់
Upon opening your SENTRY OSH headphone package, you will find the following items:
- SENTRY OSH Over Ear Bluetooth Wireless Headphones
- USB C Charging Wire
- ស្រោមការពារ
- សៀវភៅណែនាំអ្នកប្រើ (ឯកសារនេះ)

Figure 2: The included hard shell carrying case provides protection and portability for your headphones.
លក្ខណៈពិសេសផលិតផល
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.
អាយុកាលថ្មបន្ថែម
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.
រៀបចំ
1. សាកថ្មកាស
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.
បើក / បិទថាមពល
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. ប៊្លូធូសផ្គូរ
- ត្រូវប្រាកដថាកាសត្រូវបានបិទ។
- Press and hold the Power button until the indicator light flashes rapidly, indicating pairing mode.
- នៅលើឧបករណ៍របស់អ្នក (ស្មាតហ្វូន ថេប្លេត កុំព្យូទ័រយួរដៃ) សូមចូលទៅកាន់ការកំណត់ប៊្លូធូស។
- ស្វែងរក available devices and select "SENTRY OSH" from the list.
- 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.
សេចក្តីណែនាំប្រតិបត្តិការ
Audio Playback Controls
- លេង/ផ្អាក៖ Press the Multi-function button (often the power button or a dedicated play/pause button) once.
- បទបន្ទាប់៖ ចុចឲ្យជាប់ប៊ូតុងបង្កើនសំឡេង។
- បទមុន៖ ចុចឱ្យជាប់ប៊ូតុងកម្រិតសំឡេងចុះក្រោម។
- កម្រិតសំឡេងឡើង៖ ចុចប៊ូតុងកម្រិតសំឡេងឱ្យខ្លី។
- បរិមាណចុះក្រោម៖ ចុចប៊ូតុងកម្រិតសំឡេងឱ្យខ្លី។
ការគ្រប់គ្រងការហៅ
- ឆ្លើយ/បញ្ចប់ការហៅទូរសព្ទ៖ ចុចប៊ូតុងពហុមុខងារម្តង។
- បដិសេធការហៅទូរសព្ទ៖ ចុចឱ្យជាប់ប៊ូតុងពហុមុខងាររយៈពេល 2 វិនាទី។
- លេខចុងក្រោយម្តងទៀត៖ ចុចទ្វេដងលើប៊ូតុងពហុមុខងារ។
ការគ្រប់គ្រងការលុបចោលសំឡេងរំខានសកម្ម (ANC)
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.
ថែទាំ
- ការសម្អាត៖ ប្រើក្រណាត់ទន់ និងស្ងួតដើម្បីសម្អាតកាស។ កុំប្រើសារធាតុសម្អាត ឬសារធាតុរំលាយ។
- ការផ្ទុក៖ When not in use, store the headphones in their protective carrying case to prevent damage. Avoid exposing them to extreme temperatures or humidity.
- ការថែរក្សាថ្ម៖ ដើម្បីពន្យារអាយុកាលថ្ម សូមចៀសវាងការបញ្ចេញកាសឱ្យពេញលេញញឹកញាប់។ សាកថ្មពួកវាឱ្យបានទៀងទាត់ ទោះបីជាមិនប្រើជាប្រចាំក៏ដោយ។
- ធន់នឹងទឹក៖ The headphones are water resistant. However, avoid submerging them in water or exposing them to heavy rain.
ការដោះស្រាយបញ្ហា
| បញ្ហា | មូលហេតុដែលអាចកើតមាន | ដំណោះស្រាយ |
|---|---|---|
| កាសមិនបើកទេ។ | ថ្មទាប។ | សាកកាសពេញដោយប្រើខ្សែ USB-C ដែលបានផ្តល់ឱ្យ។ |
| មិនអាចផ្គូផ្គងជាមួយឧបករណ៍បានទេ។ | កាសមិនស្ថិតនៅក្នុងរបៀបផ្គូផ្គងទេ។ ប៊្លូធូសរបស់ឧបករណ៍ត្រូវបានបិទ។ នៅឆ្ងាយពីឧបករណ៍ពេក។ | Ensure headphones are in pairing mode (flashing indicator light). Turn on Bluetooth on your device. Move headphones closer to the device (within 30 feet). Forget previous pairings on your device and try again. |
| មិនមានសំឡេងឬកម្រិតសំឡេងទាប។ | កម្រិតសំឡេងទាបពេក; កាសមិនបានភ្ជាប់; ទិន្នផលអូឌីយ៉ូមិនត្រឹមត្រូវដែលបានជ្រើសនៅលើឧបករណ៍។ | Increase volume on both headphones and connected device. Reconnect headphones. Check device's audio output settings. |
| ANC buzzing sound. | Interference or a specific frequency interaction. | Try toggling the ANC feature off and on. If the issue persists, contact customer support. |
| Headphones feel loose or uncomfortable. | Headband not adjusted correctly. | Adjust the headband to ensure a snug and comfortable fit over your ears. |
លក្ខណៈបច្ចេកទេស
| លក្ខណៈ | លម្អិត |
|---|---|
| ឈ្មោះម៉ូដែល | OVHDBKZ |
| ការគ្រប់គ្រងសំលេងរំខាន | Active Noise Cancellation (-20dB Reduction) |
| បច្ចេកវិទ្យាតភ្ជាប់ | Wireless, Bluetooth V5.3 |
| ជួរប៊្លូធូស | រហូតដល់ 30 ហ្វីត |
| អាយុកាលថ្ម | រហូតដល់ 22 ម៉ោង (ជាមួយ ANC) |
| ពេលវេលាសាកថ្ម | 3 ម៉ោង។ |
| Jack កាស | 3.5 mm Jack, USB C Charging |
| ការឆ្លើយតបប្រេកង់ | 20 Hz - 20,000 ហឺត |
| ភាពរសើប | 100 dB |
| ឧបសគ្គ | 40 អូម |
| ទំហំកម្មវិធីបញ្ជាអូឌីយ៉ូ | 40 មីលីម៉ែត្រ |
| ប្រភេទត្រួតពិនិត្យ | Touch Control, Button |
| ការដាក់ត្រចៀក | On Ear (Form Factor: Over Ear) |
| សម្ភារៈ | Plastic (Headphones), Fabric (Carrying Case) |
| កម្រិតធន់នឹងទឹក។ | ធន់នឹងទឹក។ |
| ទំងន់ធាតុ | 1.38 ផោន |
| UPC | 080068071303 |
ការធានា និងការគាំទ្រ
ការធានារយៈពេល ៦០ ថ្ងៃ
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.
ជំនួយអតិថិជន
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





