JHEMCU JHE20B Finder - Self-Powered 100dB Drone Buzzer with LED

Never Lose Your Drone Again!

The JHEMCU JHE20B Finder is an essential piece of safety equipment for any FPV pilot. This compact and lightweight buzzer has its own integrated battery, allowing it to work independently of your drone's main LiPo. If you crash and your main battery is ejected, the JHE20B Finder will automatically activate after 30 seconds, emitting a deafening 100dB alarm and flashing a super-bright LED light, guiding you directly to your downed quad. Peace of mind in a tiny package!

Key Features:

• Self-Powered: Contains a built-in battery that charges automatically when the main flight battery is connected.
• Extremely Loud: Emits a 100-decibel beep that is easy to hear from a distance.
• Bright LED Light: A flashing white LED helps you visually locate your drone in low-light conditions, tall grass, or trees.
• Smart Activation: The alarm automatically sounds 30 seconds after the main power is lost. It can also be triggered and disarmed using an auxiliary switch on your transmitter.
• Lightweight & Compact: Weighing only 2.7 grams, it adds virtually no weight to your build.
• Wide Compatibility: Works seamlessly with Betaflight, Cleanflight, and INAV flight controllers.

How It Works:

1. Connect the JHE20B Finder to your flight controller (5V, GND, and BZ- pads).
2. When you connect your main LiPo battery, the finder's internal battery will begin to charge.
3. If the main battery is disconnected (e.g., in a crash), the finder will wait for 30 seconds and then automatically start beeping and flashing.
4. The alarm will sound for 2-3 hours on a full charge.
5. To disarm the finder after locating your drone, simply reconnect the main LiPo battery for 30 seconds, and it will turn off automatically.

Specifications:

• Brand: JHEMCU
• Model: JHE20B Finder
• Size: 22mm x 12mm x 9.5mm
• Weight: 2.7g
• Sound Level: 100dB
• Input Voltage: 4.5-5.5V
• Battery Charge Time: ~1 hour
• Operating Time: ~2-3 hours