The RUSHFPV microphone is Ultra small for an easy installation. It is optimized for drones and allows a high quality audio. Features: Ultra-small size for easy installation Built-in automatic fast response gain control. No need to worry about ambient noise. Optimized for drones. High-quality audio without the need for configuration. Onboard Linear Anti Interference power supply. No more background audio noise floor. Spec: Input Voltage: 5V Dimensions: 12x6.5x2.8mm Weight: 0.3g.