Features:
Clip-On Mic for Smartphones, DSLR, Camcorders, Audio recorders, PC etc.
Superb sound for presentations and video recording.
Omni-directional condenser microphone.
High-quality condenser is ideal for video use.
Low handling noise.
Includes lapel clip, foam windscreen, 3.5mm to 6.3mm adapter.
Using the microphone
- For Smartphone
  Switch off the microphone. Slide the ON/OFF up to OFF/Smartphone.
  The power is shut down.
- For DSLR, Camcorders, Audio recorders, PC ect
  Switch on the microphone. Slide the ON/OFF up to ON.
Specifications:
Transducer: Electret Condenser
Polar pattern: Omni-directional 
Frequency Range: 65Hz ~ 18KHz.
Signal/Noise: 74dB SPL.
Sensitivity: -30dB +/-3dB / 0dB=1V/Pa, 1kHz.
Output Impedance: 1000 Ohm or less
Connector: 3.5mm (1/8”) 4-pole gold plug.
Battery Type: LR44 (not included)
Cable length: Approx. 5.7m / 18.7ft
Package size: 13.5 * 10 * 3.5cm / 5.3 * 3.9 * 1.4in
Package weight: 108g / 3.8oz
Package List:
1 * BY-M1 Microphone
1 * Lapel Clip
1 * Foam Windscreen
1 * Adapter
1 * User Manual (English)