lost plane Helicopter multicopter RC Tracker

With the "be found" module being connected to any channel of the receiver, if the rc aircraft lost in the woods or deep grass, turn off the transmitter the module will issue BB?s voice immediately, it is easy to find your aircraft. (Note: If there is interference of the signal, turn off the transmitter, the "be found" module will not loud, and the servos will vibrate ceaselessly) Also, if you do not turn off the transmitter, do not operate any lever on the transmitter , over 1 minute, the "be found" module will ring.

• Size: 16mm(L) * 14mm(w) * 12mm(H)
• Weight: 5g (wires are included)
• Operating Voltage: 3~5V