Introduction
Thank you for choosing the Monster Mission 300 Wireless Gaming Headset. This manual provides detailed instructions for setting up, operating, and maintaining your headset to ensure optimal performance and an immersive gaming experience. Please read this manual thoroughly before use.
What's in the Box
- Monster Mission 300 Wireless Gaming Headset
- Wireless Charging Case
- Detachable Microphone
- 2.4GHz USB Dongle
- 3.5mm Audio Cable
- USB-C Charging Cable
- User Manual
Product Overview
Familiarize yourself with the components and controls of your Monster Mission 300 headset.

Figure 1: Front view of the Monster Mission 300 Wireless Gaming Headset, showcasing its black and blue design with illuminated earcups and detachable microphone.

Figure 2: A gamer wearing the Monster Mission 300 headset, illustrating the immersive 7.1 surround sound experience with visual sound waves.
Headset Components:
- Earcups: Soft memory-protein earmuffs for comfort.
- Headband: Adjustable and flexible to fit various head shapes.
- Detachable Microphone: Professional-grade, noise-cancelling, adjustable.
- Controls: (e.g., Volume wheel, Power button, Mode switch, Mic mute button)

Figure 3: Close-up view highlighting the soft memory-protein earmuffs, adjustable headband, and flexible design for all-day comfort.

Figure 4: Illustration of the detachable and adjustable microphone, emphasizing its noise-cancelling capabilities.
Setup
1. Initial Charging
Before first use, fully charge your Monster Mission 300 headset. Connect the USB-C charging cable to the headset's charging port and the other end to a USB power source (e.g., computer USB port, wall adapter). The LED indicator on the headset will show charging status and turn off or change color when fully charged. A full charge provides up to 48 hours of continuous gameplay.

Figure 5: The Monster Mission 300 headset connected via USB-C, highlighting its 48-hour battery life.
2. Connecting to Devices
The Monster Mission 300 offers dual wireless connectivity (2.4GHz and Bluetooth) and a wired 3.5mm connection.

Figure 6: Visual representation of the headset's dual wireless connectivity options: Bluetooth 6.0 and Dual 2.4GHz.
2.1. 2.4GHz Wireless Connection (PC, PS5, PS4, Switch - Docked Mode)
- Insert the 2.4GHz USB dongle into an available USB port on your PC, PS5, PS4, or Nintendo Switch dock.
- Power on the headset by pressing and holding the Power button until the LED indicator lights up.
- The headset will automatically pair with the dongle. The LED indicator will show a solid light once connected.
- On your device, ensure the Monster Mission 300 is selected as the audio output and input device in sound settings.

Figure 7: The 2.4GHz USB dongle, illustrating the ultra-low latency connection (under 20ms) for seamless audio-visual sync.
2.2. Bluetooth Connection (Mobile Devices, etc.)
- With the headset powered on, press and hold the Mode button (or specific Bluetooth pairing button if available) until the LED indicator flashes rapidly, indicating pairing mode.
- On your mobile device, go to Bluetooth settings and search for "Monster Mission 300".
- Select the headset to pair. The LED indicator will turn solid once connected.
2.3. 3.5mm Wired Connection (PC, PS5, PS4, Switch, Mobile Devices)
For a wired connection, the headset does not require power.
- Connect one end of the 3.5mm audio cable to the headset's 3.5mm port.
- Connect the other end to the 3.5mm audio jack on your device (PC, controller, mobile phone, etc.).
- Ensure your device's audio settings are configured to use the connected headset.
3. Microphone Setup
The Monster Mission 300 features a detachable microphone.
- Insert the microphone into the designated port on the left earcup until it clicks into place.
- Adjust the microphone's position so it is close to your mouth for optimal voice pickup.
- Ensure the microphone is not muted (check the mic mute button on the headset).
- In your device's sound settings, select the Monster Mission 300 as the input (microphone) device.
Operating Instructions
1. Power On/Off
- Power On: Press and hold the Power button for approximately 3 seconds until the LED indicator lights up.
- Power Off: Press and hold the Power button for approximately 3 seconds until the LED indicator turns off.
2. Volume Control
Use the volume wheel located on the earcup to adjust the audio output level.
- Increase Volume: Roll the volume wheel upwards.
- Decrease Volume: Roll the volume wheel downwards.
3. Microphone Mute/Unmute
Press the Microphone Mute button (usually located near the volume wheel) to toggle the microphone on or off. An LED indicator on the microphone or headset may show its status (e.g., red light for muted).
4. 7.1 Surround Sound
The headset supports 7.1 surround sound for enhanced positional audio. This feature is typically enabled automatically when connected via 2.4GHz wireless to compatible devices (PC, PS5, PS4). For PC, ensure relevant audio drivers or software are installed if prompted.

Figure 8: Exploded view of the 50mm drivers, illustrating the components that deliver powerful bass and crystal-clear highs for immersive gaming.
5. Ambient Light (RGB Effects)
The headset features dynamic RGB lighting. The lighting effects typically activate when the headset is powered on. There may be a dedicated button to cycle through lighting modes or turn them off, refer to specific product documentation for exact control.
Maintenance
- Cleaning: Use a soft, dry cloth to wipe down the headset. For earmuffs, a slightly damp cloth can be used, but ensure no moisture enters the speaker grilles. Do not use harsh chemicals or abrasive cleaners.
- Storage: Store the headset in a cool, dry place away from direct sunlight and extreme temperatures. If storing for extended periods, ensure the battery is partially charged (around 50%) to prolong its lifespan.
- Battery Care: Avoid fully discharging the battery frequently. Charge the headset regularly, even if not in use, to maintain battery health.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound from headset | Headset not powered on; Volume too low; Incorrect audio output selected; Not paired/connected. | Ensure headset is powered on and charged. Increase volume. Check device's sound settings to select "Monster Mission 300" as output. Re-pair/reconnect the headset. |
| Microphone not working | Microphone muted; Not properly inserted; Incorrect audio input selected. | Unmute the microphone. Ensure it is fully inserted into the port. Check device's sound settings to select "Monster Mission 300" as input. |
| Connection issues (2.4GHz/Bluetooth) | Out of range; Interference; Dongle/Bluetooth not recognized. | Move closer to the device. Reduce interference from other wireless devices. Re-insert USB dongle or re-pair Bluetooth. Restart both headset and device. |
| Short battery life | Not fully charged; Battery degradation over time. | Ensure headset is fully charged before use. For optimal battery life, avoid frequent full discharges. |
Specifications
- Model Name: H10
- Connectivity Technology: Wireless (2.4GHz, Bluetooth), Wired (3.5mm)
- Ear Placement: On Ear
- Form Factor: On Ear
- Manufacturer: Monster
- Item Weight: 1.15 pounds
- Battery Life: Up to 48 hours (continuous gameplay)
- Latency: Under 20ms (2.4GHz mode)
- Sound: 7.1 Surround Sound, 50mm Drivers
- Microphone: Detachable, Noise-Cancelling
- Compatibility: PC, PS5, PS4, Switch, most mobile devices (via 3.5mm jack). Note: Not compatible with Xbox consoles.
Warranty and Support
Monster provides exclusive after-sales service for every customer. If you have any questions, require technical assistance, or need to inquire about warranty information, please feel free to contact our customer support at any time.
For support, please refer to the contact information provided on the official Monster website or your product packaging.





