It's compatible with the Naze32 and other similar flight
controllers. When used with the Naze32, it can be setup as a low voltage
alarm, lost model alarm and it can also be configured to provide status
alerts like 'no rx signal' and other warnings.
The buzzer is 12mm diameter x 9mm long and comes with a
160mm cable terminating in a 3 pin servo plug (to use with the Naze,
simply move the red wire into the middle position).
Specification:
Resonant Freqency: 2300 ± 500Hz
Sound output at 10cm: >85dB
Current consumption: <25mA
Weight: 2.8g
Dimensions (Buzzer): 9 x 11.8mm
Wire Length: 160mm
Plug: Servo Plug
Rated Voltage: 5V DC
Operating Voltage: 3.5-5.5V