SPECIFICATIONS

• Microphone Type: Digital Silicon Mark
• Input Voltage: 5V
• Microphone Battery: 100 mAh
• Charging Compartment Battery: 600 mAh
• Battery Life: Up to 10 hours
• Signal-to-Noise Ratio: 64 dB
• Noise Reduction: 3-step
• Transmission Delay: 30 ms
• Sensitivity: -42 dB
• Frequency Response Range: 20 Hz - 20 kHz
• Transmission Distance: 20 m - 30 m (barrier-free)