This Omni-directional Lavalier Microphone is designed to deliver high-quality audio recording. It clips on to your shirt or lapel, and the sensitive, omnidirectional condenser capsule captures the sound equally from all sides of the microphone. This design lends to effective, hands-free recording of vlogging, youtube, speeches, interviews, podcast, dictations, video conference and more. Specification: Polar Pattern: Omni-directional Sound Field: Mono Transducer: Electret Condenser Sensitivity: -65dB rel Volt/Pascal (0dB=1V/Pa at 1kHz) Signal to Noise Ratio: 75db SPL Maximum SPL: 105db Frequency: 50Hz-18kHz Power Requirement: 3V CR-2032 (Needed only for use with camera, action camera and camcorder) Length: Total 23 ft long, the mic to the control tube is 3.28 ft, the control tube to the mic connector is 19.68 ft Compatibility: It works with cell phone, camera, video camera, GoPro, DJI, audio recorder, tablet, laptop, computer that has a built-in 3.5mm TRS or TRRS female mic/headphone port or has an extra mic/headphone adapter to accept mic. User Notes (Please read before purchase/use): 1. For iPhone models after iPhone 6s (2015), you have to get a Lightning to 3.5mm female headphone jack adapter from Apple 2. For Android phones do not have a 3.5m TRRS headphone port, you have to get a Type-C to 3.5mm female headphone jack adapter 3. For GoPro or DJI action cameras, you have to get a 3.5mm Female mic jack adapter from GoPro or DJI 4. When used with phone, tablet and laptop, set the mic to smart mode from the control tube, you don't need install the CR-2032 battery included in the packaging 5. When used with camera and camcorder, set the mic to camera mode from the control tube, you need install the CR-2032 battery included in the packaging (The LED bulb on the control tube will turn on to indicate the mic has power)