Features:
Professional system including a microphone and a receiver.
With frequency , 37 channels and long distance operation.
Using a 24bit/48kHz high-performance audio dedicated A/D and D/A processor.
Use code+frequency for frequency matching encryption. (although two receivers use the same frequency, the receiving chip will be affected by signal interference, which only affects the working distance and does not generate noise)
Equipped with automatic mute and shock cancellation circuits to shock and noise when opening/closing the device.
The receiver with 6.35mm can be applicable for speaker, audio mixer and DVD player, also with a 3.5mm audio for camera connection.
System is powered by the built-in rechargeable and can be recharged with type-c cable included.
The system can be widely applicable for video recording, broadcast, interview, online teaching and more occasions.

Specifications:
Type: 1 Microphone, Black / 2 Microphones, 1 & 1 Black (Optional)
Material: +ABS
Receiver Size: 98 * 32 * 22mm / 3.86 * 1.26 * 0.87in
Microphone Size: 215 * 47 * 47mm / 8. * 1.85 * 1.85in  
Item Weight: 251g / 8.85oz
Package Weight: 348g / 12.28oz, 590g / 20.83oz
Package Size: 26 * 10.3 * 6cm, 26 * 15.3 * 6cm

Microphone:
Frequency : High frequency
Frequency Channel: 37 channels, code randomly changing
Oscillation Mode: DP chip frequency locking
Frequency Stability: ±10ppm
Frequency : 10dBm
Frequency Response: 4018KHz
Distortion: 0.5%
: 3.7V
Working Hours: 6-8 hours
Frequency :
Usage : 30-50 meters

Receiver:
Frequency : High frequency
Frequency Channel: 37 channels, code randomly changing
Oscillation Mode: DSP chip frequency locking
Frequency Stability: ±10ppm
Receiving Sensitivity 95~71dBm
Frequency Response: 40-18KHz
Signal to Noise Ratio: 90dB
Audio Output: 300mV (maximum)

Package List: I9066-2
1 * Handheld Microphone
1 * Receiver
1 * Microphone Silicone
1 * 3.5mm Conversion
1 * Type-C Cable