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Working voltage: 3.6V
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Working current: 50 mA
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Lithium battery capacity: 450 mAh
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Continuous working time: 8h
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Charging time: 3h
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Frequency range: 2.400-2.483GHz
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Channel spacing: 2MHz
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Transmitting power: 3dBm
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Sampling frequency: 32KHz, 16bit
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Modulation method: GFSK
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Receiving sensitivity: -80dBm
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Signal to noise ratio: 50dB
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Horn diameter: 40mm
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Speaker impedance: 32
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Frequency response: 2020KHz
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Microphone specifications: 6*5mm
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Microphone sensitivity: -58dB
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Microphone directivity: omnidirectional
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Microphone frequency response: 100Hz-8KHz
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Earphone connection plug: 3.5/2.5mm
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Length of earphone handle cable: 1m
