【Description】● BOYA BY-M1 is an Omni directional lavalier microphone， designed for Smartphones， DSLR， Camcorders， Audio recorders PC etc， it is perfect for video use. With Omni pickup pattern， for full 360° coverage， it absolutely gives you the possibility to capture anything in your sight.● Moreover， the integrated 6-meter (20”) cable with 3.5mm 4-pole gold plug is just a second thing to be connected to your smartphones and most of your cameras. 100% a good choice to be picked. Super sound for presentations and video audio recorders. 【# Kindly Note】● 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 etc:Switch on the microphone. Slide the ON/OFF up to ON.【Features】1.Clip-On Mic for Smartphones， DSLR， Camcorders， Audio recorders， PC etc.2.Omni directional condenser microphone3.High-quality condenser is ideal for video use4.Low handling noise5. Vidpro XM-L Wired Lavalier microphone - 20' Audio Cable6. It is mono【Specification】Transducer type： Electret CondenserPolar Pattern： Omni-directionalFrequency Range： 65Hz ~ 18KHzSignal / Noise： 74dB SPLSensitivity： -30dB +/-3dB / 0dB=1V/Pa， 1kHzOutput Impedance: 1000 Ohm or lessOutput Connection: 3.5mm (1/8”) 4-pole gold plugBattery Type: LR44 (Included)Dimension: Microphone :18.00mmH x 8.30mmW x 8.30mmAudio Cable: 20.00ft (6.00m)Weight: Microphone : 2.50gPower Module: 18.00g 【Package Contents】1* Boya Omnidirectional Lavalier Condenser Microphone-20ft Audio Cable-1*Lapel Clip1*Foam windscreen1* 1/4” adapter1* LR44 battery1* English User's Manual 【To Buyer】1. Have you got any question， please send a message to us， and we’ll reply ASAP. 2. Your unvarnished viewpoint & feedback are very important to us as well as other consumers. It’ll be highly appreciated if you can spare a few minutes to leave a feedback.3. Enjoy your shopping! :)