Frequency band: VHF. Mic power: built-in lithium battery. Mic battery life: about 8-10 hours. Microphone size: 23.5 5cm. 4 Microphone. 4 Microphone anti-skid ring. Solve K song difficulties: the high frequency is crisp, the mid frequency is full, and the low frequency is steady, allowing you to enjoy a good sound.
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