BOYA  directional microphone – [BY-M1] BOYA BY-M1 is an omni directional lavalier microphone, perfect for video use, designed for Smartphones, DSLR, Camcorders ,Audio recorders, PC etc. The lavalier microphone features an Omni pickup pattern, for full, 360-degree coverage. An integrated 6-meter (20”) cable with 3.5mm 4-pole gold plug, can connect directly to Smartphones, most of cameras. 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： Polar pattern: Omini-directional Frequency response: 65Hz-18KHz Signal/Noise: 74dB or more Output Impadence: 1000Ω or less Power requirement: LR44