Hollyland Lark M2 Combo (Type-C + Lightning) Wireless Lavalier Microphone System - Shine Charcoal

Specifications

• 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 :48 kHz
• 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)
• warranty : 3 months