FeaturesLavalier microphoneIncludes adapter for DSLR/amplifier or other professional audio devicesClip-on omnidirectional condenser microphoneDesigned for vocal or video useAudio cable: 20ft (6m)The Maono Lavalier Electret Condenser 3.5mm 4 Pole Jack Tie-Clip On Lapel Omnidirectional Microphone combo includes an extra backup battery and an adapter for DSLR/amplifier or other professional audio devices to make your life easier. The lavalier Tie-Clip-on omnidirectional condenser microphone is designed for vocal or video use, providing clear and an accurate voice recording experience to the users, which is significantly better than majority of the built-in microphones, making it ideal for all sorts of recording; indoors and outdoors. This hands free microphone allows you to hold your manuscripts while recording your voice clearly. This is the ideal microphone for almost all audio and video recording needs, whether using Android/Windows smartphones or Apple iPhone or DSLR camera to record for YouTube, interviewing, live broadcasting, teaching, speech, events, singing/calling and wherever it is necessary to record audio in broadcast quality. FeaturesTransducer Type: Electret CondenserPolar Pattern: Omni-directionalFrequency Range: 50Hz - 18KHzSignal / Noise: 74dB SPLSensitivity: -30dB +/-3dB / 0dB=1V/Pa, 1kHzOutput Impedance: 1000 Ohm or lessOutput Connection: 3.5mm (1/8inch) 4-pole gold plugBattery Type: LR44 (Included)Dimension: Microphone:18.00mmH x 8.30mmW x 8.30mmDAudio Cable: 20ft (6.00m)Weight: Microphone- 2.5g; Power Module- 18g