Brand : BoyaCompatible with : Digital & Camcorder CameraAccessory Type : Camera External MicrophoneAre batteries needed to power the product or is this product a battery : NoProduct Description:Features: 1. Compact on-camera microphone 2. Compatible with smartphones, DSLR cameras, Consumer Camcorders, PCs etc. 3. Rugged metal construction 4. No battery required 5. Professional furry windshield included Specifications: Transducer: Electret Condenser Polar pattern Cardioid Frequency Response35-18KHz +/-3dB Sensitivity-42dB +/- 1dB / 0dB=1V/Pa, 1 kHz Signal to Noise Ratio: 76dB SPL Plug3.5mm TRS and TRRS connector Dimensions: 22×81mm Net Weight: 86g/0.19 lb. Package Included: 1×BOYA BY-MM1 MicrophoneBrand : BoyaCompatible with : Digital & Camcorder CameraAccessory Type : Camera External MicrophoneAre batteries needed to power the product or is this product a battery : NoIs this a Dangerous Good or a Hazardous Material, Substance or Waste that is regulated for transportation, storage, and/or disposal? : No