DC12V/24V
512MB/1GB/2GB/4GB
2.5 audio input/SD plug
87.7~108.0MHZ
5-10m
+20ppm (-10°C+50°C)
0 to +55c°
>60DB
100-15000Hz
4.2+EDR
5v /201A
Echo Cancellation and noise suppression cvc ,
Echo Cancellation and noise suppression cvc , Full duplex, DSP Technology
ER68520/19