Light Weight: 4.8g w/wire.

With Red/Blue light and Buzzer

Best For EP-Heli & EP-Plane

In Fly check Battery Voltage drop. Best for EP-Heli and Plane Use.

up 7.4V Blue light shines
7.4V~6.8V Blue light flashs
6.8V~6.6V Red light shines
below 6.6V Red light flashs & " ....Beep..~..Beep..~...