Manufacturer: JHEMCU
Model: JHE20B / JHE42B / JHE42B-S
Input: 5V
Size: JHE20B (22mm * 12mm * 9.5mm) / JHE42B (23mm * 17mm * 17mm) / JHE42B-S (18mm * 17mm * 15mm)
Weight: JHE20B (2.7g) / JHE42B (7.4g) / JHE42B-S (4.3g)
Volume: 100dB

The buzzer has two working modes:
It is compatible with the functions of traditional active buzzers and is synchronized with the flight control system.
When the flight control system is normally connected, if the main battery is powered off during flight, the system can still automatically emit a 100-decibel ticking sound 30 seconds after the power failure, and at the same time, the LED light will emit white light. The sound intensity of this device far exceeds that of an ordinary buzzer and is much louder.

The JHE42B locator is compatible with all BF and CF flight control systems.
It can work simply by connecting to the buzzer interface of the flight controller. When the flight controller wiring is correctly connected, after the multi-rotor aircraft is powered on, the flight controller power supply will automatically charge the JHE42B seeker (the red LED light being on indicates that it is charging).

How to turn off the buzzer
Press and hold the release button for more than 2 seconds, and the JHE42B_S edge finder will turn off the sound. The JHE42B_S edge finder is compatible with all BF and CF flight controllers and can operate simply by connecting to the buzzer interface of the flight controller. When the flight controller is wired correctly, after the multi-rotor unmanned aerial vehicle is powered on, the power supply of the flight controller will automatically charge the JHE42B_S edge finder (a red LED light indicates that the charging is in progress, a red light off indicates that the charging is full; a red light flashing indicates that the flight controller has been powered off. Please wait for 30 seconds).

How to turn off the buzzer
Press and hold the release button for more than 2 seconds, and the JHE20B Finder will turn off the sound.
The JHE20B Finder is compatible with all BF and CF flight controls. It can work simply by connecting to the buzzer interface of the flight controller. When the flight control wiring is correct, the multi-rotor aircraft is powered on, and the flight control power supply will automatically charge the JHE20B Finder (the red LED will light up to indicate that the charging is in progress, the red LED will go off to indicate that the charging is full; the red light will flash to indicate that the flight controller is powered off and wait for 30 seconds).

Includes:
1x Jhemcu JHE42B / JHE42B_S / JHE20B
1x 3P x 1.0mm Cable