One To Two Mini Wireless Collar-clip Noise-cancelling Microphone With Charging Case(Black)

Mini wireless collar-clip noise-cancelling microphone designed for audio capture. It features dual microphones that can receive sound simultaneously, making it suitable for interviews and presentations.

• Charging current: 50mA
• Working current: 14.5mA
• Power consumption: less than 16mA
• Rated voltage: 3.7V
• Wireless transmission frequency: 2.4GHz
• Sound delay: less than 20ms
• Sensitivity: -38dB
• Adapter input: 5V/1A
• Transmission distance: 20 meters
• Microphone type: 360-degree omnidirectional
• Frequency response: 100Hz-10kHz
• Signal-to-noise ratio: 60dB
• Input sound pressure level: 115dBSPL (MAX)
• Sampling frequency: 32kHz
• Sampling depth: 16bit
• Input voltage: DC4.8-5.2V
• Microphone battery capacity: 60mAh
• Working time: 3-4 hours
• Charging current: 200mA
• Charging compartment battery capacity: 350mAh
• Working time of charging compartment: 2 times (charges two transmitters simultaneously)
• Memory function: Yes
• Long-distance sound pickup: 20 meters
• Storage box included: Yes
• Dimensions: 54mm x 53.7mm x 18.5mm (including clip)
• Weight: 40.8g