Version Overview
The LARK M2 system is available in several configurations:
- LARK M2 Duo (Lightning): Includes charging case, transmitter (TX), and two receivers (RX) with Lightning connectors.
- LARK M2 Duo (USB-C): Includes charging case, transmitter (TX), and two receivers (RX) with USB-C connectors.
- LARK M2 Duo (Camera): Includes charging case, transmitter (TX), and two receivers (RX) designed for camera connection.
- LARK M2 Combo: Includes charging case, transmitter (TX), and multiple receivers (RX) in various configurations. The exact quantity of items depends on the product configuration.
Product Overview
System Components
The LARK M2 system consists of transmitters (TX) and receivers (RX), along with a charging case.
Mobile Version Components:
TX1: Transmitter unit.
RX (USB-C/Lightning): Receiver unit with either a USB-C or Lightning connector.
Charging Case: Used for charging and storing the TX and RX units.
Camera Version Components:
TX1, TX2: Transmitter units.
RX: Receiver unit.
Charging Case: Used for charging and storing the TX and RX units.
TX: Transmitter Details
The transmitter features:
- Built-in Microphone
- Status Indicator
- Power/Noise Cancellation/Pairing Button
- Clip Magnet
- Charging Contacts
Mobile Version RX: Receiver Details (Lightning/USB-C)
The mobile receiver features:
- USB-C Port (for charging or connection, depending on version)
- Noise Cancellation/Pairing Button
- TX1 Status Indicator
- TX2 Status Indicator
Note: The connector type is available in Lightning and USB-C versions.
Camera Version RX: Receiver Details
The camera receiver features:
- USB-C Port
- Power Button
- Mode Switching/Pairing Button
- Status Indicator
- Volume Knob
- Volume/Mode Indicator
- Charging Contacts
- 3.5mm Audio Output Jack
- Back Clip
Product Usage (Mobile Version)
TX Placement
The preferred placement for the TX is at the collar. For speaking with a loud volume, an upper chest position can be chosen. The TX can be worn using either the back clip or the clip magnet.
- Using Clip Magnet: Place the clip magnet on the back of the collar and secure the TX on the front of the collar with the magnet.
- Using Back Clip: Clip the back clip onto the collar and secure the TX with the clip.
A magnet necklace is included for securing the TX around your neck.
For best sound quality during recording, ensure the TX is placed correctly and the microphone is not covered by any cloth. When recording outdoors, use a windscreen to minimize noise from wind and breathing.
Connecting RX to Phone
- Lightning Version: Plug the RX (Lightning) into the phone.
- USB-C Version: Plug the RX (USB-C) into the phone.
Charging Phone via RX
Charge your phone through the RX for simultaneous charging and usage.
Product Usage (Camera Version)
Connecting RX to Camera
- Attach the RX to the camera's hot shoe or cold shoe using the back clip.
- Connect the RX's 3.5mm audio output port to the camera's 3.5mm audio input port using a 3.5mm TRS to TRS cable.
- Set the camera's recording volume to the minimum level and the receiver's output volume to the medium level to ensure the best recording quality.
Indicator Description
TX Indicator Lights
| Description | Status |
|---|---|
| Blue light flashing | TX and RX not connected |
| Blue light steady | TX and RX connected |
| Green light steady (in use) | Noise Cancellation ON |
| Pink light steady | TX updating |
| Orange light steady | TX charging |
| Green light steady (while charging) | TX fully charged |
| Red light flashing slowly | TX low battery |
Mobile Version RX Indicator Lights
| Description | Status |
|---|---|
| Blue light flashing | TX and RX not connected |
| Blue light steady | TX and RX connected |
| Green light steady (in use) | Noise Cancellation ON |
| Pink light steady | RX updating |
| Red light flashing slowly | TX low battery |
Camera Version RX Indicator Lights
| Description | Status |
|---|---|
| Blue status indicator light flashing | TX and RX not connected |
| Blue status indicator light steady | TX and RX connected |
| Green status indicator light steady (in use) | Noise Cancellation ON |
| Pink status indicator light steady | RX updating |
| Orange status indicator light steady | RX charging |
| Green status indicator light steady (while charging) | RX fully charged |
| Red status indicator light flashing slowly | TX low battery |
| Two red status indicator lights flashing quickly | RX low battery |
Volume/Mode Indicator Lights (Camera Version RX)
- Blue light steady: Stereo mode
- Green light steady: Mono mode
- One volume/mode indicator light steady: Low volume
- Two volume/mode indicator lights steady: Medium volume
- Three volume/mode indicator lights steady: High volume
Charging Case Indicator Lights
| Indicator Status | Battery Level / Status |
|---|---|
| One LED ON | 25% battery |
| Two LEDs ON | 50% battery |
| Three LEDs ON | 75% battery |
| Four LEDs ON | 100% battery |
| One LED ON, steady red | Low battery level and cannot charge the RX and TX |
| One flashing LED when connected via USB | Charging |
| Four LEDs sequence on | Charging case updated |
Product Usage
Automatic On/Off
The TX and RX turn on automatically when taken out of the charging case and turn off automatically when placed back in.
Manual On/Off
Press and hold the TX power button, or the Camera Version RX power button for 3 seconds to turn the device on or off.
Noise Cancellation
- TX: Press the noise-cancellation button on TX to turn the function on or off. The status indicator on TX turns green when noise cancellation is active.
- Mobile Version RX: Press the noise-cancellation button on the mobile version RX to turn the function on or off. The status indicator on the RX turns green when noise cancellation is active.
Manual Pairing
- TX: With the TX off, press and hold the TX pairing button for 6 seconds to start pairing. The TX status light will quickly flash blue when in pairing mode.
- Mobile Version RX: Connect the RX to a phone and hold the pairing button for 3 seconds to start pairing. The RX status light will quickly flash blue when in pairing mode.
- Camera Version RX: With the camera version RX on, hold the pairing button for 3 seconds to start pairing.
The TX and the RX are pre-paired at the factory.
Charging
Manual Charging:
- TX: When the status indicator on TX turns into slow flashing red, charge the TX using the magnetic charger. Solid orange indicates charging in progress. Solid green indicates charging completed, and the light will go off 30 minutes later.
- Camera Version RX: When both status indicators on the camera version RX turn into fast flashing red, charge the RX using the charging cable. Solid orange indicates charging in progress. Solid green indicates charging completed, and the light will go off 30 minutes later.
Automatic Charging:
When the status indicator on TX turns into slow flashing red, or when both status indicators on RX turn into fast flashing red, place them in the charging case. They will start charging automatically. Solid orange indicates charging in progress. Solid green indicates charging completed.
Video Recording Control
While shooting with your phone, double-press the button on TX to start or stop video recording.
This function only works when the camera app of your phone supports controlling video recording by pressing the volume key.
Mode Switching (Camera Version RX Only)
- Connected to a phone: The green light stays on, supporting mono mode only.
- Connected to a camera: The blue light stays on, indicating stereo mode; the green light stays on, indicating mono mode.
To switch mode, simply press the mode switching button on the RX.
Volume Lock (Camera Version RX Only)
To lock the current volume level on the Camera Version RX, simply double-click the power button. Double-click the power button again to release the volume lock.
Volume Adjustment: The factory default volume is set at medium level, with three levels available: high, medium, and low.
Volume Control Diagram Description: Turn the volume knob clockwise to turn the volume up. Turn the volume knob counterclockwise to turn the volume down.
Firmware Update
- Mobile Version: Update via the Lark Sound app.
- Camera Version: Update via the Lark Sound app or from the Hollyland official website.
Note: The mobile version only supports mono mode. Only pair one RX to the TX during recording to ensure proper operation of the LARK M2 combo version.
App Information
Lark Sound App
The Lark Sound app is available for download on Xiaomi, Huawei, and Apple App Stores. You can also scan the QR code (not included here) to download the app.
The Lark Sound app is a perfect match for Hollyland wireless microphones. With the app, users gain access to smart features such as parameter configurations and firmware updates, enhancing microphone performance.
Requirements:
- For iPhone | iPad: Requires iOS 12.0 or higher.
- For Android: Requires Android 8.0 or higher.
Specifications
| Specification | Details |
|---|---|
| Mic Sensitivity | -37 dBV ± 2dB @ 1 KHz, 94dB SPL |
| Wireless Modulation Mode | GFSK 2 Mbps |
| Wireless Transmission | 2.4 GHz Adaptive Frequency Hopping (AFH) |
| Transmission Range | Mobile Version: Up to 1000ft (300m) for LOS / 200ft (60m) for NLOS Camera Version: Up to 1000ft (300m) for LOS / 130ft (40m) for NLOS |
| Mic Polar Pattern | Omnidirectional |
| Frequency Response | 20 Hz–20 kHz |
| Signal-to-Noise Ratio | > 70dB |
| Sound Pressure Level | 115dB SPL |
| Bit Depth | 24-bit |
| Sample Rate | 48kHz |
| Battery Voltage | TX: 3.87V Camera Version RX: 3.87V Mobile Version Charging Case: 3.8V Camera Version Charging Case: 3.8V |
| Battery Capacity | TX: 97 mAh Camera Version RX: 145 mAh Mobile Version Charging Case: 750 mAh Camera Version Charging Case: 1950 mAh |
| Operating Time | TX: About 10 hours Camera Version RX: About 9 hours Mobile Version Charging Case: > 2 times charging for 2 TX at the same time Camera Version Charging Case: > 3 times charging for all TX and RX at the same time |
| Charging Time | TX: About 1.5 hours Camera Version RX: About 1.5 hours Mobile Version Charging Case: < 1.5 hours Camera Version Charging Case: < 2 hours |
| Charging Temperature | 0° C to 45° C |
| Operating Temperature | -10° C to 45° C |
| Dimensions | TX: Approx. D26mm x 9.9mm (1.0" x 0.4") Mobile Version RX: Approx. 40mm x 16.5mm x 9mm (1.6" x 0.6" x 0.4") Camera Version RX: Approx. 40mm x 25.7mm x 20.5mm (1.6" x 1.0" x 0.8") Mobile Version Charging Case: Approx. 75.8mm x 49.8mm x 35mm (3.0" x 2.0" x 1.4") Camera Version Charging Case: Approx. 86mm x 54mm x 39mm (3.4" x 2.1" x 1.5") |
| Weight | TX: Approx. 9g (0.3oz) Mobile Version RX: Approx. 6g (0.2oz) Camera Version RX: Approx. 14.8g (0.5oz) Mobile Version Charging Case: Approx. 65.6g (2.3oz) Camera Version Charging Case: Approx. 111g (3.9oz) |
* The data provided above is based on laboratory testing results.
Support
If you encounter any problems or need assistance, please contact the Hollyland Support Team via the following methods:
- Hollyland User Group
- HollylandTech [Facebook Icon]
- HollylandTech [YouTube Icon]
- Email: support@hollyland.com
- Website: www.hollyland.com
Statement
All copyrights belong to Shenzhen Hollyland Technology Co., Ltd. Without written approval, no organization or individual may copy or reproduce any part of this content.
Trademark Statement
All trademarks are owned by Shenzhen Hollyland Technology Co., Ltd.
Note
This User Manual may be updated periodically due to product version upgrades or other reasons. Unless otherwise agreed, this document is provided as a guide for use only. All representations, information, and recommendations do not constitute warranties of any kind, express or implied.
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