Energy-saving design, long-time operation
Can be used as a steady laser source
Articulate voice, low background noise
Judgmatical calling function
32 steps volume control
Low-power alarm
Maximum dynamic range 50dB for long distance communication

Wavelength A:1310nm, B:1550nm
(unit A works at 1310nm, unit B works at 1550nm)
Telecommunication system Full duplex communication
Modulation type Simulated and Numerical
Fiber type A?SM & MM (the dynamic range will be 20db shrink with MM fiber)
Spectral Width <15nm