Smith-Victor Lavalier Microphone for GoPro Camera Smith-Victor Lavalier Microphone - 3.5mm-to-mini USB Adapter - LR44 Alkaline Battery - Lapel Clip - Foam Windscreen - Smith-Victor 2 Year Limited Warranty Compatibility: GoPro cameras, HDSLR cameras, Smartphones and Camcorders Polar Pattern: Omnidirectional Type: Condenser Frequency Response: 65Hz to 18kHz