Product Overview
The Sarevile M99+ Bluetooth Headset is designed for clear communication and comfort, ideal for office work, video conferences, and daily calls. It features advanced noise cancellation, long battery life, and versatile connectivity options.

Image: The Sarevile M99+ Bluetooth Headset, showcasing its sleek design and wireless capabilities.
What's in the Box
Upon unboxing your Sarevile M99+ Bluetooth Headset, you will find the following components:
- Bluetooth Headset
- USB Dongle
- Charging Cable
- User Manual

Image: All items included in the Sarevile M99+ Bluetooth Headset package: the headset, USB dongle, charging cable, and user manual.
Setup
Charging the Headset
Before first use, fully charge the headset. Connect the provided charging cable to the Micro-USB charging port on the headset and the other end to a USB power source. The LED indicator will show charging status.
Connecting via USB Dongle (Recommended for Computers)
- Insert the USB dongle into an available USB port on your computer.
- The headset and dongle will automatically pair. The LED indicator on the headset will show a stable blue light once connected.
- On your computer, ensure that "M99+" is selected as both the audio input and output device in your sound settings.

Image: The Sarevile M99+ headset connected to a laptop via its USB dongle, illustrating a stable and efficient connection for computer use.
Connecting via Bluetooth (for Smartphones/Tablets)
- Ensure the USB dongle is unplugged from any device.
- Turn on the headset. It will automatically enter pairing mode if not already connected.
- On your smartphone or tablet, go to Bluetooth settings and search for "M99+".
- Select "M99+" to connect. The headset's LED indicator will turn solid blue upon successful pairing.

Image: The Sarevile M99+ headset demonstrating its Bluetooth V5.2 connectivity, shown alongside a smartphone displaying the pairing process.
Operation
Controls Overview

Image: A detailed diagram highlighting the various controls on the Sarevile M99+ headset, including volume buttons, LED indicator, multifunction button (MFB), mute/unmute button, microphone, and Micro-USB charging port.
Call Management
- Answer/End Call: Press the Multifunction Button (MFB).
- Reject Call: Long press the MFB.
- Mute/Unmute Microphone: Press the dedicated Mute button on the microphone boom.
Volume Control
- Increase Volume: Press the Volume + button.
- Decrease Volume: Press the Volume - button.
Voice Assistant Activation
- Activate Siri/Voice Assistant: Long press the MFB for 3 seconds.
Comfort and Fit
The Sarevile M99+ is designed for all-day comfort:
- Adjustable Headband: Extend or retract the headband to fit your head size.
- 270° Rotatable Boom Mic: The microphone arm can be rotated 270 degrees, allowing you to wear the headset on either your left or right ear.
- Soft Earmuff: The ear cushion is made of memory foam and breathable protein leather for extended comfort.

Image: A close-up view of the Sarevile M99+ headset's earcup, emphasizing the soft foam and breathable protein leather designed for comfort during prolonged use.

Image: Two individuals wearing the Sarevile M99+ headset, illustrating its versatile design that allows comfortable wear on either the left or right ear.
Maintenance
To ensure the longevity and optimal performance of your Sarevile M99+ Bluetooth Headset, follow these maintenance guidelines:
- Clean the headset regularly with a soft, dry cloth. Avoid using harsh chemicals or abrasive materials.
- Store the headset in a cool, dry place away from direct sunlight and extreme temperatures.
- Do not expose the headset to water or excessive moisture.
- Avoid dropping or subjecting the headset to strong impacts.
- Keep the charging port free of dust and debris.
Troubleshooting
No Sound or Poor Audio Quality
- Ensure the headset is properly connected to your device (via Bluetooth or USB dongle).
- Check the volume levels on both the headset and your connected device.
- If using the USB dongle, verify that "M99+" is selected as the audio input and output in your computer's sound settings.
- If using Bluetooth, ensure the dongle is unplugged.
- Move closer to your device to avoid interference or range issues.
- Reboot your device and restart the headset.

Image: An exploded view illustrating the internal components of the Sarevile M99+ headset's speaker, highlighting its smart noise control technology for clearer audio.
Headset Not Pairing
- Ensure the headset is in pairing mode (refer to Setup section).
- Make sure Bluetooth is enabled on your device.
- If connecting to a computer, try a different USB port for the dongle.
- Clear previous Bluetooth connections on your device and try pairing again.
- Ensure the headset is sufficiently charged.
Microphone Not Working
- Check if the microphone is muted using the mute button on the boom.
- Verify that "M99+" is selected as the input device in your application (e.g., Zoom, Teams) or system sound settings.
- Ensure the microphone boom is positioned correctly near your mouth.
Specifications
| Feature | Detail |
|---|---|
| Model Name | NEWEST M99+ |
| Connectivity Technology | Bluetooth, Wireless |
| Wireless Communication Technology | Bluetooth |
| Bluetooth Version | 5.2 |
| Noise Control | Environmental Noise Cancellation (ENC) |
| Battery Life | Up to 50 Hours (Talk Time) |
| Standby Time | Up to 200 Hours |
| Charging Time | Approx. 2 hours |
| Frequency Range | 20 Hz - 20,000 Hz |
| Compatible Devices | Computers, Smartphones, Tablets |
| Material | Plastic, Memory Foam |
| Item Weight | 9.5 ounces |
| Manufacturer | Sarevile |
Warranty and Support
Sarevile products are designed and manufactured to the highest quality standards. For warranty information and customer support, please refer to the contact details provided on the product packaging or visit the official Sarevile website. Keep your purchase receipt as proof of purchase for any warranty claims.
For further assistance, you may contact Sarevile customer service via their official store page: Sarevile Store on Amazon.





