T600 2.4G Wireless Headset Microphone And PA Voice Amplifier Loud Soun Speaker Completely Hands Free For Special Teaching Speech Loudspeaker(Black) HT-S

Description:
2.4G wireless microphone: Input Voltage Range: DC3.5V-5.5V
Maximum Current: ≤40mA
Battery Type:Built-in 400mah Polymer Battery
Charging Time:
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