GREAT FEATURE: ●DSP digital audio technology:  Multi-frequency sampling DSP A-level chip, effective shielding background noise, providing excellent ECHO effects. CCM4021 + fixed-point dual-core independent digital audio processor supports three recording modes. ●Compatible with mainstream software and systems:  Support iOS \ Android \ windows \ XP \ MAC, great for 'karaoke' & 'smule sing' & 'facebook' & 'WeChat' ect APP ●Real-time monitor:  Built-in high-performance 3D stereo card, providing 3.5mm audio output port to facilitate your external headset or audio equipment! ●FM wireless connection to your car audio equipment ●One key to switch six kinds of sound effects ●No need software, plug and play, easy to use Specifications: Microphone Directivity: Omnidirection Microphone type: Condenser Support system:IOS/Android/Windows Impedance: 2.2KΩ Sensitivity: -47 ± 3db Freuquency response: 28HZ-20KHZ Vocal Freuquency: 50Hz-13KHz Power supply: Built-in lithium battery Battery: 600mAh Charging power supply: DC5V Charging time: 1hour Audio equipment receiving frequency: 87.5Hz Microphone size:130*35.5*32.5mm b>What's inside the box? 1× GM991B Wireless Microphone 1×Tripod Stand 1× charge cable 1× audio cable 1× headphone 1× pop filter
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