【Dual Microphone System】Features two microphones for simultaneous audio capture, ideal for interviews or dual-speaker scenarios. 【Advanced Audio Processing】Delivers CD-quality sound with innovative three-level noise reduction and echo cancellation for crystal-clear recordings. 【Voice Modulation】Offers three voice-changing modes: original, deep male, and female voice, perfect for content creation and entertainment. 【Long-Range Performance】Capable of picking up sound from up to 20 meters away, ensuring flexibility in various recording environments. 【Portable Design】Comes with a compact storage case for easy transportation and protection of the microphones. 【Versatile Compatibility】Works with OTG-enabled Type-C devices, particularly those manufactured after 2019 for optimal performance. 【Long Battery Life】Microphones offer 3-4 hours of working time, with the charging case providing two full charges for extended use. Specifications: Dimensions: 54 x 53.7 x 18.5 mm (including clip) Microphone Battery Capacity: 60mAh Charging Case Battery Capacity: 360mAh Wireless Transmission: 2.4GHz Sound Delay: Less than 20ms Sensitivity: -38dB Transmission Range: 20 meters Microphone Type: 360-degree omnidirectional Frequency Response: 100Hz-10KHz Signal-to-Noise Ratio: 58dB Maximum Input Sound Pressure Level: 115dB SPL Sampling Rate and Depth: 32KHz, 16-bit Input Voltage: DC 4.8-5.2V Adapter: 5V/1A Main Material: PC