?-Clip-on mic for Smartphones, DSLRs, camcorders, audiorecorders. PC etc -High quality capacitor, ideal for video use. -Low handling noise -Includes lapel clip, LR44 battery, foam windscreen, 1/4? adapter -Headphone monitoring playback in smartphone mode -10 db sound attenuation. -Omnidirectional microphone: Picks up sound. Sound enters through holes in the top microphone capsule -Power Supply: Provides microphone power for use with cameras and other devices that require a powered mic. ? Camera Setting: Turns on power to the microphone for use with cameras and other devices that require a powered mic -Shutdown Setting: Switches to shutdown mode when you stop recording to save battery -Smartphone Setting: Switch to smartphone mode to enable BY-M1 Pro works on mobile devices like smartphones, tablets and PCs, etc. with 3.5mm input jack -3.5mm connector: connects MPH to smartphone, camera, camcorder or other recording device switch to 0/ and db depending on environment * 0/ -10db -adjustment: with the switch and db pad, it effectively reduces unwanted plosive when the subject sound is very loud and close to the microphone -Earphone monitoring: in smartphone mode, the earphone monitoring of reading is allowed -Transducer: Elecret condenser -Polar pattern: omini-directional -Frequency range: 65 ha 18 khz -Signal to noise: 78 db xd -Sensitivity: -30dB +/ -3dB / 0dB = 1 v/Pa, 1 kHz -Output impedance: 1000 ohm or less -Battery type: LR44 included (compatible with LR44, 357 and SR44) Package Weight: 100g Package Dimensions: 9cm x 3.5cm x 13cm Package Includes: 1 x BY-M1 Pro Lavalier Microphone 1 x Noise Cancelling Wind Muff 1 x Carry Pouch 2 x User Manual