4-channel automatic volume control (WDRC)
Hyper cardioid pickup pattern microphone
Double microphones
Middle-power output with low distortion
Adaptive feedback cancellation
Layered Noise Reduction
Automatically saving volume & Mode
Multiple functions with one button
3 program modes(P1 Quiet Environment Mode, P2 Noise Reduction Mode, P3 Advanced Noise Reduction Mode)
Mode switch prompt tone
Volume change prompt tone
Low battery warning indicator
Booting delay prompt tone
Magnetic catch charging
Booting Automatically out of the box,
Power off in the box
BLE wireless Bluetooth control





Function:
- 3 program modes mode switch prompt tone volume change prompt tone

Peak OSPL90(dB SPL) | 107±3dB |
OSPL90-HFA(dB SPL) | 104±3dB |
Peak Gain(dB) | 31±4dB |
HFA/FOG Gain(dB) | 28±4dB |
Equivalent input noise(dB) | ≤30dB |
Frequency response range(Hz) | F1≤500Hz F2≥4000Hz |
Harmonic distortion | ≤3% |
Battery drain | NA |
Warranty | 1 year |
Packing | 15.3x9.6x5.8cm |
Certificate | CE, FCC, ISO, ROHS |





