BOYA BY-M1 Omnidirectional Lavalier Microphone for Canon Nikon Sony DSLR Camcorder Audio Recorders iPhone 6 5S 5 4S 4Clip-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 CondenserPolar pattern: Omni-directional Frequency Range: 65Hz ~ 18KHz.Signal/Noise: 74dB SPL.Sensitivity: -30dB /-3dB / 0dB=1V/Pa, 1kHz.Output Impedance: 1000 Ohm or lessConnector: 3.5mm (1/8) 4-pole gold plug.Battery Type: LR44 (not included)Cable length: Approx. 5.7m / 18.7ftPackage size: 13.5 * 10 * 3.5cm / 5.3 * 3.9 * 1.4inPackage weight: 108g / 3.8ozPackage List:1 * BY-M1 Microphone1 * Lapel Clip1 * Foam Windscreen1 * Adapter1 * User Manual (English)