Introduction
Welcome to the user manual for your Orosound Tilde Pro On Ear Bluetooth Office Headset. This guide provides comprehensive instructions for setting up, operating, and maintaining your headset, ensuring you get the most out of its advanced features, including Active Noise Cancellation (ANC), a high-definition detachable microphone, and seamless connectivity.

Image: The Orosound Tilde Pro headset, featuring its on-ear design, integrated microphone, and a separate USB dongle for wireless connectivity.
Product Overview and Key Features
The Orosound Tilde Pro headset is designed for professional and personal use, offering a blend of comfort, audio quality, and advanced noise management.
- Modular Design: Adaptable ear cushions and an optional HD microphone allow for customization and extended product life.
- Detachable HD Noise-Canceling Microphone: Provides superior voice quality for calls and meetings, and can be removed for personal listening.
- Active Noise Reduction (ANC): Adjustable noise cancellation to minimize distractions while maintaining a natural sound environment.
- Seamless Connectivity: Supports Bluetooth 5.0 for wireless connection to mobile phones and computers, and a USB-C to USB-A cable for wired mode.
- Aware+ Mode: Allows you to hear your surroundings clearly without removing the headset, activated by the Tilde Voice First button.
- Extended Battery Life: Up to 28 hours with ANC off, and 18 hours via Bluetooth. Quick recharge provides 50% battery in 30 minutes.
- HD Music: Equipped with 40mm speakers for high-definition audio playback.
- Voice Commands: Compatible with popular voice assistants like Siri and Google Assistant.
- Easy Adjustments: Intuitive controls for mute, power on/off, ANC, volume, and sidetone.

Image: The Orosound Tilde Pro headset disassembled, showing the main headset unit, two interchangeable ear cushions (labeled L and R), and the detachable boom microphone. This illustrates the modular design.

Image: A woman wearing the Orosound Tilde Pro headset with the boom microphone extended, engaged in a conversation, demonstrating the "Crystal Clear Calls" feature in an office setting.
Setup
1. Unboxing and Initial Inspection
Carefully remove all components from the packaging. The box should contain the Orosound Tilde Pro headset and ear cushions.
2. Charging the Headset
Before first use, fully charge your headset. Connect the included USB-C to USB-A cable to the headset's USB-C port and the other end to a powered USB port (e.g., computer, wall adapter). The LED indicator will show charging status. A full charge provides up to 28 hours of use. A quick 30-minute charge can provide 50% battery.
3. Attaching the Detachable Microphone
The Tilde Pro features a magnetic detachable boom microphone. Align the microphone connector with the port on the headset and gently push until it clicks into place. Ensure it is securely attached to prevent accidental detachment during use.
4. Bluetooth Pairing
- Ensure the headset is powered off.
- Press and hold the power button until the LED indicator flashes, indicating pairing mode.
- On your device (mobile phone or computer), enable Bluetooth and search for "Orosound Tilde Pro" in the list of available devices.
- Select the headset to connect. Once paired, the LED indicator will show a steady light.
5. Wired Connection
For a wired connection, simply connect the USB-C to USB-A cable from the headset to your computer. The headset will automatically switch to wired mode, allowing for audio and microphone functionality without Bluetooth.

Image: The Orosound Tilde Pro headset shown connected wirelessly to a laptop via a USB dongle and to a smartphone via Bluetooth, illustrating its broad compatibility with leading communication software.
Operating Instructions
Power On/Off
- To Power On: Press and hold the power button until the LED indicator lights up.
- To Power Off: Press and hold the power button until the LED indicator turns off.
Active Noise Cancellation (ANC)
The Tilde Pro offers adjustable ANC to reduce ambient noise.
- Activate/Deactivate ANC: Use the dedicated ANC button on the headset.
- Adjust ANC Level: Some models or software versions may allow for adjustment of ANC intensity. Refer to the Orosound Link application for advanced settings.
Aware+ Mode (Tilde Voice First)
This feature allows you to hear your surroundings without removing the headset.
- Activate Aware+ Mode: Press the Tilde Voice First button on your headset.
- Deactivate Aware+ Mode: Press the Tilde Voice First button again.
Volume Control
Adjust the listening volume using the controls on the headset.
Microphone Mute
Mute or unmute your microphone during calls.

Image: A close-up view of the Orosound Tilde Pro headset's left earcup, highlighting the power button, LED indicator, and microphone mute button for easy adjustments.
Call Management
- Answer/End Call: Press the multi-function button.
- Reject Call: Press and hold the multi-function button.
Music Playback
- Play/Pause: Press the multi-function button.
- Next Track: Double-press the multi-function button.
- Previous Track: Triple-press the multi-function button.
Voice Assistant
Activate your device's voice assistant (Siri, Google Assistant) by pressing and holding the multi-function button.

Image: A woman wearing the Orosound Tilde Pro headset, with text overlays highlighting key features such as 28-hour battery life, wired mode capability, HD music with 40mm speakers, and compatibility with voice commands like Siri and Google Assistant.
Maintenance
Cleaning
- Use a soft, dry, lint-free cloth to clean the headset surfaces.
- For ear cushions, gently wipe with a slightly damp cloth and allow to air dry completely before use. Do not use harsh chemicals or abrasive materials.
- Ensure no moisture enters the ports or speaker grilles.
Storage
Store the headset in a cool, dry place away from direct sunlight and extreme temperatures. If storing for an extended period, ensure the battery is partially charged (around 50%) to preserve battery health.
Battery Care
To maximize battery lifespan, avoid fully discharging the battery frequently and avoid leaving it fully charged for prolonged periods.
Ear Cushion Replacement
The ear cushions are designed to be interchangeable. If replacement is needed, gently twist and pull the existing cushions off and align the new cushions with the headset's earcups, pressing firmly until they click into place.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Headset does not power on. | Low battery. | Charge the headset fully using the provided USB-C cable. |
| Cannot pair via Bluetooth. | Headset not in pairing mode; device Bluetooth off; interference. | Ensure headset is in pairing mode (flashing LED). Turn device Bluetooth off and on. Move closer to the device. Forget previous pairings on your device and try again. |
| No sound or poor audio quality. | Volume too low; incorrect audio output selected; interference; outdated drivers. | Increase headset and device volume. Select "Orosound Tilde Pro" as the audio output on your device. Reduce distance to device. Update Bluetooth drivers on your computer. |
| Microphone not working or poor quality. | Microphone muted; not securely attached; incorrect input selected; software issues. | Ensure microphone is not muted on headset or device. Verify the detachable microphone is securely attached. Select "Orosound Tilde Pro" as the microphone input on your device/application. Check for audible crackling and ensure Orosound Link software is updated. |
| Microphone boom falls off easily. | Improper attachment; magnetic connection issue. | Ensure the microphone is firmly clicked into place. Handle the headset carefully to avoid accidental dislodgement. |
| ANC not effective. | ANC not activated; environmental noise too high for full cancellation. | Ensure ANC is activated. The Tilde Pro's ANC is designed for natural noise reduction, not 100% blockage. |
If problems persist, try resetting the headset (refer to Orosound support for specific reset procedures) or contact Orosound customer support.
Specifications
| Feature | Detail |
|---|---|
| Model Name | Pro-S Plus |
| Brand | Orosound |
| Noise Control | Active Noise Cancellation |
| Connectivity Technology | Bluetooth 5.0, USB-C Wired |
| Headphones Jack | USB-C Jack |
| Earpiece Shape | On Ear |
| Audio Driver Type | Dynamic Driver (40mm speakers) |
| Frequency Range | 20 Hz - 20,000 Hz |
| Impedance | 32 Ohm |
| Special Features | Detachable noise canceling mic boom, Microphone mute, USB wired headset mode, Aware+ Mode |
| Control Type | Media Control, Touch |
| Compatible Devices | Mobile Phones, Computers |
| Item Weight | 1 pounds (approx. 16 ounces) |
| Product Dimensions | 7 x 6 x 2 inches |
| Batteries | 1 Lithium Ion battery (included) |
| Water Resistance Level | Not Water Resistant |
Warranty and Support
For warranty information and technical support, please refer to the official Orosound website or contact Orosound customer service directly. Keep your proof of purchase for any warranty claims.
As this product is listed as "Renewed," specific warranty terms may vary. Please consult the seller ("Renewed Headsets") or Amazon Renewed program details for their specific return and warranty policies. For product functionality and technical queries, Orosound remains the primary resource.
Manufacturer: Orosound
Model: Pro-S Plus
Date First Available: March 8, 2023