JLC Pilot RJ9 Headset

Moving-coil neodymium iron shed magnetic speaker
Outside diameter: 28mm
Frequency response: 150HZ~ 4.5khz
Rated input power: 30mW
maximum endurance power: 50mW
Microphone
Directivity: Single pointing
Size: Ф 6 x 2.7 mm
Frequency range: 50HZ~ 3.0khz
Sensitivity: -44±3dB
impedance: 2.2K
Working voltage: 3.0V
Current: uA100 ~ 400 uA
Voltage withstand range :1.0~10.0V
Operating systems compatibility: Windows/MAC/Linux
Software compatibility: Skype, Zoom, Microsoft Teams and other video conferencing software