1. Product Overview
The GRENARO S12 Dual Channel Wireless Microphone system is designed for high-quality audio recording with smartphones and laptops. It features adjustable noise reduction, multiple sound modes, and a long-range wireless connection, making it suitable for various recording environments.
Figure 1: GRENARO S12 Dual Channel Wireless Microphone System
2. What's in the Box
- 2 x Wireless Microphones (Transmitters)
- 1 x Type-C Port Receiver
- 2 x Sponge Head Windshields
- 2 x Windproof Plush Head Windshields
- 1 x User Manual
- 1 x Charging Cable
Figure 2: Included components of the GRENARO S12 system
3. Key Features
3.1. Adjustable 3-Level Noise Reduction
The microphone offers three levels of noise reduction to adapt to various environments. Level 1 is suitable for quiet indoor settings, Level 2 for moderate outdoor noise, and Level 3 for extremely noisy surroundings.
Figure 3: Three levels of noise reduction for different environments
3.2. Clear LED Indicators
The microphone features clear LED indicators for battery status, connection status, and selected sound mode (Original Sound, Noise Reduction, Reverb, Mute). This allows for easy monitoring of the microphone's operational status.
Figure 4: Clear LED indicators for various functions
3.3. Two Types of Filter Heads
The system includes both a sponge filter head and a windproof plush filter head. The sponge filter is effective for reducing indoor noise, while the windproof plush head is designed to minimize outdoor wind noise, ensuring clear audio in diverse settings.
Figure 5: Sponge and windproof plush filter heads
3.4. Long Battery Life
Each microphone features a built-in 65mAh rechargeable battery, providing up to 6 hours of operation. The included charging cable allows simultaneous charging of the microphone and connected devices.
Figure 6: Battery life and charging information
3.5. Ultra-Long Receiving Distance
The system offers a wireless reception range of up to 30 meters (98 feet), providing flexibility and freedom of movement during recording.
Figure 7: 30-meter wireless reception range
3.6. Wide Compatibility
The GRENARO S12 is compatible with devices featuring a Type-C port, including Android smartphones and iPhone 15 series and later models.
Figure 8: Compatibility with Type-C devices
4. Setup Guide
4.1. Connecting the Receiver
- Ensure your device (smartphone or laptop) has a Type-C port.
- Plug the Type-C receiver directly into your device's Type-C port.
- The receiver's indicator light will show its connection status.
4.2. Pairing the Microphones
- Turn on the wireless microphone(s) by pressing the power button.
- The microphone(s) will automatically attempt to pair with the receiver. A stable indicator light on the microphone signifies a successful connection.
4.3. Android Device Specific Settings
For certain Android phones (e.g., Oppo, Vivo, Xiaomi, OnePlus, Realme), you may need to enable OTG (On-The-Go) power supply in your phone's settings if you encounter connection issues.
If your default camera app experiences issues with the external microphone, download and use a third-party camera application like 'Open Camera'. In 'Open Camera' settings, navigate to 'Video settings' > 'Audio source' and select 'External mic (if present)'.
Figure 9: Android OTG connection guide
5. Operating Instructions
5.1. Power On/Off
Press and hold the power button on the microphone to turn it on or off.
5.2. Switching Sound Modes (Noise Reduction, Reverb, Mute)
The microphone features a multi-function button to cycle through different sound modes:
- Single Press: Cycles through the 3 levels of noise reduction. Observe the LED indicators to identify the current level.
- Double Press: Activates or deactivates the Mute function.
- Triple Press: Activates or deactivates the Reverb mode.
5.3. Charging the Microphone
Connect the provided Type-C charging cable to the charging port at the bottom of the microphone. The microphone can be charged while in use, allowing for extended recording sessions.
Figure 10: Charging the microphone during use
5.4. Video Demonstration
Watch this video for a detailed demonstration of the microphone's features and sound modes:
Video 1: GRENARO S12 Wireless Microphone Features and Sound Test
6. Maintenance
- Keep the microphone and receiver clean and dry.
- Avoid exposing the devices to extreme temperatures or direct sunlight.
- Store the microphone system in a protective case when not in use to prevent damage.
- Regularly clean the filter heads. Replace them if they become worn or damaged.
7. Troubleshooting
- Connection Issues (Android): For Oppo, Vivo, Xiaomi, OnePlus, and Realme phones, ensure OTG power supply is enabled in your device settings.
- Camera App Issues (Android): If the default camera app does not recognize the microphone, download and use the 'Open Camera' app. Configure its audio source to 'External mic (if present)' in video settings.
- No Sound/Low Volume: Check microphone and receiver connections. Ensure both devices are powered on and charged. Verify the sound mode is not set to Mute.
- Poor Sound Quality: Adjust noise reduction levels according to your environment. Ensure the correct filter head (sponge for indoor, plush for outdoor) is attached.
8. Technical Specifications
| Feature | Specification |
|---|---|
| Brand | GRENARO |
| Model Name | S12 (Dual Channel Type-C Port Version) |
| Connectivity Technology | 2402-2480 MHz |
| Connector Type | USB Type-C |
| Special Features | 3-Level Adjustable Noise Reduction, Clear Indicator Light, Original Sound, Noise Reduction, Reverb, Mute Modes, Sponge & Windproof Plush Filter Heads |
| Compatible Devices | Laptop, Smartphone (Android, iPhone 15 Series & Later) |
| Color | Black |
| Item Weight | 80 Grams |
| Microphone Form Factor | Lavalier |
| Power Source | Battery Powered |
| Battery Life | Up to 6 hours |
| Material | Acrylonitrile Butadiene Styrene |
| Signal-to-Noise Ratio | 80 dB |
| Number of Channels | 2 |
| Product Dimensions | 8 x 12 x 3 cm |
9. Warranty and Support
The GRENARO wireless microphone is covered by a 1-year warranty from the date of purchase. To register and activate your warranty, please send your order ID to customer_service@grenaro.com.
For any issues with functionality, audio quality, or noise cancellation, dedicated support is available 24/7. Contact GRENARO customer service for prompt assistance.
- Email: customer_service@grenaro.com
- Tel / WhatsApp: +91 9667585067
Figure 11: Warranty and customer support details
