SM-8818
1). Check wiring error in 5E, 6E, Coaxial cable, USB line and telephone line,
2).Such as open Circuit, short circuit jumper wire, reverse connection or cross-talk interference.
3). Locate the wiring or connection error.
4).Low Battery display
5).Automatically time-delay shut off.
6).Far-end recognizer with prompting voice.
7).Self-checking function and automatically compensate any change in battery capacity or
Ambient temperature.
