Product Review

BOYA BY-M1 is an Omni directional lavalier microphone, designed for Smartphones, DSLR, Camcorders, Audio recorders PC etc, it is perfect for video use.
With Omni pickup pattern, for full 360¡ã coverage, it absolutely gives you the possibility to capture anything in your sight.
Moreover, the integrated 6-meter (20¡±) cable with 3.5mm 4-pole gold plug is just a second thing to be connected to your smartphones and most of your cameras.
100% a good choice to be picked. Super sound for presentations and video audio recorders.
Kindly Note:
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 etc:
Switch on the microphone. Slide the ON/OFF up to ON
Features:
1.Clip-On Mic for Smartphones, DSLR, Camcorders, Audio recorders, PC etc.
2.Omni directional condenser microphone
3.High-quality condenser is ideal for video use
4.Low handling noise
5. Vidpro XM-L Wired Lavalier microphone - 20' Audio Cable
Specification
Transducer type: 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
Output Connection: 3.5mm (1/8¡±) 4-pole gold plug
Battery Type: LR44 (Included)
Dimension: Microphone:18.00mmH x 8.30mmW x 8.30mmD; Audio Cable: 20ft (6.00m)
Weight: Microphone : 2.5g; Power Module: 18g
Package Contents:
1X Boya Omnidirectional Lavalier Condenser Microphone-20ft Audio Cable
1XLapel Clip
1XFoam windscreen
1X1/4¡± adapter
1X LR44 battery
1X English User's Manual
1X Free Gift -Windsreen/Windshield

If you need a updated version with DUAL-HEAD BY-M1DM,the ASIN is B07CKMBX89