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‚ 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 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