Features:Having Fun with DJI OSMO ，When recording ， we found the fan noise and the noise from the handheld buttom will be record to the videos ....So our external microphone can solve this problem， Makes the recording effect sounds more clear， understand， reduce the unnecessary noise， easy to use.Product parameters: capacitor type single microphone OS-121Microphone line length: 1mFrequency range: 50Hz-16HzWorking voltage: 1.0v-10vPoint: single point.Package included:External microphone For DJI OSMO handheld gimbal