Omni directional Condenser Microphone Low-Handling Noise Includes Lapel Clip Microphone Clip 1/4" Adapter LR44 Battery Foam Windscreen Product Name: BY-M1 lavalier condenser microphone Applicable scenes: live mobile phone, SLR recording, program interview, mobile phone, live broadcast, special computer, interview Product features: clear sound quality, high compatibility, six meters long How to use: lavalier Wire length: about 6m Directivity: omnidirectional Sensitivity: -30db±3db (0db=1v/pa, 1khz) Frequency response: 65hz-18khz Signal to noise ratio: >74db Power: button battery section Weight: 20.5g Interface: standard universal 3.5mm jack Display Have wireless Microphone type capacitor Smart type does not support intelligence