Features:

• New version of the lost model alarm, now with LED lights to help you locate the model.
• Compatible with most RC radios.
• Lighter weight than before, now only 3.7g (without wires).
• Works with airplanes/helicopters/drones.
• Two alarm modes: Alarm when turned on from a transmitter AUX channel, and/or alarm when transmitter signal is lost.

Specifications:

• Operating Voltage: 3v-5.5v
• less than 1mA, silent
• Max working current: 72mA
• Alarm Sound Loudness: 83-86dB
• Dimensions: 17.2 x 22.8mm
• Weight: 3.7g