Feature: 1. This lavalier microphone can be used for SLRs, cameras, computers, mixers, etc. Widely used, suitable for a variety of scenarios, including video/live/game/interview 2. When the switch is set to OFF/PHONE, directly plug the mobile phone and single‑hole notebook. When the switch is set to CAMERAS, directly plug the camera and camcorder to use, and even the 6.35mm converter can be directly plugged into the rod speaker and the mixer to use 3. 360° omnidirectional sound pickup, effect is clear as HD picture quality. Metallic omnidirectional capacitive microphone core, clear and accurate seize sound source, evenly pick up human voices. Windproof sponge can effectively block external noise interference, the sound quality is more pure 4. Deep noise reduction bring low distortion rate, using the seventh-generation CVC noise reduction system, multi-stage narrow-band high-frequency and intermediate-frequency selective filter technologies to eliminate interference signals, improve frequency stability 5. Before noise reduction, the sound is harsh and the waveform is of sharpness. After noise reduction, the sound is full and the waveform is smooth. Will not affect your interview even in a noisy environment recording 6. The microphone cable adopts TPE noise reduction wire, copper core material, 200D bulletproof wire. Possess 50% stronger tensile force than ordinary round wire. Tough and durable 7. Adopt creative detachable lavalier design, convenient for you to record real sound Specification: Item Type: Lavalier Microphone Material: Copper core + rubber + galvanized + plastic Microphone: Electret capacitor Directivity: Omnidirectional Frequency Range: 20Hz-20KHz Signal to Noise Ratio: 74dB SPL Sensitivity: -30dB +/- 3dB/0dB=1V/Pa, 1kHz Output Impedance: ≤2200 Ohm Connector: 3.5mm (1/8in) 4-pole gold plug Battery Type: 3 x LR626 battery(delivered with matching battery) Battery Capacity: 18mAh How to Use: 1. When the switch is set to OFF/PHONE, directly plug the mobile phone and single-hole notebook (the microphone is in non-powered working mode at this time) 2. When the switch is set to CAMERAS, directly plug into the camera and camcorder for use, and even the 6.35mm converter can be directly plugged into the rod speaker and the mixer for use (the microphone is in power supply mode at this time) . Package List: 1 x Double Head Lavalier Microphone2 x LR626 Battery2 x Noise Reduction Sponge1 x 1/4 Conversion Head1 x User Manual1 x PU Leather Bag Note: The product is equipped with a built‑in battery inside and two matching batteries outside.