Hollyland LARK M2 Wireless Lavalier Microphone System

The Hollyland LARK M2 pairs two button-size 9 g wireless transmitters with a receiver for a camera, phone, or computer, and a case that charges and carries the set.

Receivers and Versions

The camera receiver has a 3.5 mm output, a volume knob with three LEDs, and a button that switches between mono and stereo when it is connected to a camera. The mobile receivers plug straight into a phone or tablet: a Lightning plug with an MFi-certified Apple chip, or a USB-C plug for USB-C phones, action cameras, and computers. The Combo carries the camera receiver and both plug-in receivers. The Configurations tab compares the four kits and their colors.

Each transmitter attaches with a magnet or hangs from its silicone necklace case, and the set comes paired from the factory. The receivers support UAC, so they connect to a computer with no external sound card.

Range and Band

Over 2.4 GHz adaptive frequency hopping, the link reaches up to 1,000 feet (300 m) line of sight. A high-gain antenna keeps the signal steady when the wearer’s body is in the way, and a metal mesh over the mic guards against dust and interference.

Sound and Power

The transmitters record at 48 kHz/24-bit with a signal-to-noise ratio above 70 dB and handle sound pressure levels up to 115 dB, and ENC reduces the noise around the speaker.

A transmitter runs about 10 hours on a charge. The camera version’s case gives about 40 hours of total use and recharges in under 2 hours, and the mobile versions’ case gives about 30 hours and recharges in under 1.5 hours.

App and Phone Control

The LarkSound app updates firmware, sets volume and noise cancellation, and shows audio status. With a plug-in receiver on a phone, recordings play back through the phone’s speaker without unplugging. On phones where one press of a volume button starts video or takes a photo, a double press of the transmitter’s noise cancellation button does the same.

Features

Two 9 g button-size transmitters with magnet and necklace mounting
Camera, Lightning, and USB-C receivers, by version
Up to 1,000 feet (300 m) line of sight over 2.4 GHz
48 kHz/24-bit audio, over 70 dB SNR, and 115 dB SPL
ENC noise reduction
About 10 hours per transmitter, and up to about 40 hours with the case
LarkSound app control and UAC computer connection
Mono or stereo recording and a volume knob on the camera receiver

Configurations

Kit	Colors	Receivers	Charging Case
Combo	Black	Camera receiver, USB-C plug receiver, and Lightning plug receiver	Camera version
Camera	Black	Camera receiver	Camera version
Mobile (Lightning)	Black, White	Lightning plug receiver	Mobile version
Mobile (USB-C)	Black, White	USB-C plug receiver	Mobile version

What's Included

Item	Combo	Camera	Mobile (Lightning)	Mobile (USB-C)
Transmitters	2	2	2	2
Camera receiver	1	1	None	None
USB-C plug receiver	1	None	None	1
Lightning plug receiver	1	None	1	None
Camera version charging case	1	1	None	None
Mobile version charging case	None	None	1	1
Transmitter windscreens	2	2	2	2
Magnets	4	4	4	4
Silicone necklace cases	2	2	2	2
USB-A to USB-C cable	1	1	1	1
USB-C to USB-C cable	None	1	None	None
USB-C to Lightning cable	None	1	None	None
3.5 mm TRS to TRS cable	1	1	None	None
Transmitter sticker sheet	1	1	1	1
Drawstring bag	1	1	1	1

Specifications

Wireless Transmission	2.4 GHz adaptive frequency hopping (AFH)
Modulation	GFSK 2 Mbps
Range, Mobile Versions	Up to 1,000 ft (300 m) line of sight; 200 ft (60 m) non-line of sight
Range, Camera Receiver	Up to 1,000 ft (300 m) line of sight; 130 ft (40 m) non-line of sight
Polar Pattern	Omnidirectional
Frequency Response	20 Hz to 20 kHz
Mic Sensitivity	−37 dBV ±2 dB (at 1 kHz, 94 dB SPL)
Signal-to-Noise Ratio	> 70 dB
Maximum SPL	115 dB SPL
Sample Rate and Bit Depth	48 kHz, 24-bit
Transmitter Battery	97 mAh, 3.87 V
Camera Receiver Battery	145 mAh, 3.87 V
Mobile Charging Case Battery	750 mAh, 3.8 V
Camera Charging Case Battery	1950 mAh, 3.8 V
Transmitter Operating Time	About 10 hours
Camera Receiver Operating Time	About 9 hours
Mobile Charging Case	More than 2 full charges for both transmitters
Camera Charging Case	More than 3 full charges for both transmitters and the receiver
Charging Time	Transmitter and camera receiver about 1.5 hours; mobile case under 1.5 hours; camera case under 2 hours
Charging Temperature	0 to 45 °C
Operating Temperature	−10 to 45 °C
Transmitter Size and Weight	26 mm diameter x 9.9 mm (1.0 × 0.4 in); about 9 g (0.3 oz)
Plug-In Receiver Size and Weight	40 × 16.5 × 9 mm (1.6 × 0.6 × 0.4 in); about 6 g (0.2 oz)
Camera Receiver Size and Weight	40 × 25.7 × 20.5 mm (1.6 × 1.0 × 0.8 in); about 14.8 g (0.5 oz)
Mobile Charging Case Size and Weight	75.8 × 49.8 × 35 mm (3.0 × 2.0 × 1.4 in); about 65.6 g (2.3 oz)
Camera Charging Case Size and Weight	86 × 54 × 39 mm (3.4 × 2.1 × 1.5 in); about 111 g (3.9 oz)