Actually its the same with Boya BY-M1

Clip-On Mic for Smartphones, DSLR, Camcorders, Audio recorders, PC etc.

• Omni directional condenser microphone

• High-quality condenser is ideal for video use

• Low handling noise

Sparow Superlav is an omnidirectional lavalier microphone, perfect for video use, designed for Smartphones, DSLR, Camcorders ,Audio recorders, PC etc. The lavalier microphone features an Omni pickup pattern, for full, 360-degree coverage. An integrated 6-meter (20”) cable with 3.5mm 4-pole gold plug, can connect directly to Smartphones and most of the cameras

Features

• Clip-On Mic for Smartphones, DSLR, Camcorders, Audio recorders, PC etc.
• Omni directional condenser microphone
• High-quality condenser is ideal for video use
• Low handling noise
• Includes lapel clip, LR44 battery, foam windscreen, 1/4” adapter

Specification

• Polar pattern: Omini-directional
• Frequency response: 65Hz-18KHz
• Signal/Noise: 74dB or more
• Output Impadence: 1000Ω or less
• Power requirement: LR44

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