<br /><b>Overview</b><br>The BOYA BY-M1 Lavalier Clip-on Omnidirectional Condenser Microphone is designed for video use and provides clear and accurate voice reproduction. Newscaster-style design provides effective omni-directional pickup pattern. The best performance+cost value available for your complete video needs. <br> Unit is extremely lightweight, designed for optimum portability and comfort, and delivers some of the clearest recorded sound you can find. The BY-M1 is not just for cameras, it is also compatible with iPhone series smartphones, audio recorders and mobile devices. Microphone performance is much better than most built-in camera microphones: outstanding for interviews, podcasts, dictation, and much more. This microphone is a workhorse, never get caught with mushy, muffled sound again.<br> Windscreen and wind muff are included for use in breezy conditions or while moving at speed. Includes 20-foot audio cable, LR44 700-hour battery, 1/4" Jack adapter, and Tie-clip for handy mounting. The components fit inside many standard camera cases. Also includes 1-year manufacturer warranty. <br> <br /> <b>Specification:</b><br> Transducer type: Electret Condenser<br> Frequency Range: 65Hz ~ 18KHz<br> Signal / Noise: 74dB SPL<br> Sensitivity: -30dB +/-3dB / 0dB=1V/Pa, 1kHz<br> Output Impedance: 1000 Ohm or less<br> Output Connection: 3.5mm (1/8") 4-pole gold plug<br> Battery Type: LR44 <br> Dimension: Microphone :18.00mmH x 8.30mmW x 8.30mm <br>Audio Cable: 20.00ft (6.00m)<br>Weight: Microphone : 2.50g Power Module: 18.00g<br><br /><b>Notes:</b> <br> For Smartphone: <br>Switch off the microphone. Slide the ON/OFF up to OFF/Smartphone. The power is shut down. <br> For DSLR, Camcorders, Audio recorders ect：<br>Switch on the microphone. Slide the ON/OFF up to ON.<br> <br /> <b>What's in the box?</b> <br>1 * BY-M1 Microphone<br> 2* Lapel Clip<br> 2 * Foam Windscreen<br> 1 * 1/4"(6.5mm) Jack adapter<br> 1 * User Manual (English)<br> 1* LR44 Battery (Included)