教育系统的麦克风

Teaching System Microphone (M2) Receiver Frequency Scope: 2.4 2.483GHz Frequency Response Scope : 50Hz 12KHz Modulation Type: GFSK,BT=0.5Gaussian Linking Mode: ID Coding, Auto-link locking Data Transmitting: Two-way 2.4G frequency-hopping (FH) Sensitivity: -82dBm(1%BER) Signal-to-Noise Ratio: ≥110dB Harmonic Distortion: ≤0.5% Working Distance: ≤50 meters Output Mode: Blanced Output and imbalanced Output Woring Temperature: -30-50°C Working Voltage: DC15V/500mA Weight: 970G Dimension: 212*121*37(mm) Transmitter(Clip) Frequency Scope: 2.4 2.483GHz Frequency Response Scope: 50Hz 12KHz Modulation Type: GFSK,BT=0.5Gaussian Transmitting Power: 2.5mW Linking Mode: ID Coding, Auto-link locking Data Transmitting: Two-way 2.4G frequency-hopping (FH) Linking Time: <5 Seconds Sensitivity: -82dBm(1%BER) Signal-to-Noise Ratio: ≥110dB Working Current: 50mA Working hours: 20 hours Working Voltage: 3.7V Lithium battery Battery Capacity: 1000mAH Working Distance: ≤50 meters Woring Temperature: -30-50°C Weight: 70G Dimension: 107*35*25(mm) Transmitter(Holding) Frequency Scope: 2.4 2.483GHz Frequency Response Scope: 50Hz 12KHz Modulation Type: GFSK,BT=0.5Gaussian Transmitting Power: 2.5mW Linking Mode: ID Coding, Auto-link locking Data Transmitting: Two-way 2.4G frequency-hopping (FH) Linking Time: <5 Seconds Sensitivity: -82dBm(1%BER) Signal-to-Noise Ratio: ≥110dB Working Current: 35mA Working hours: 15 hours Working Voltage: 9V Alkaline battery Working Distance: ≤50 meters Working Temperature: -30-50°C Weight: 306G Dimension: 240*50*50(mm)