Does anyone have any feedback on the NicheMall - DroneKeeper Micro II to alert you with a veryt loud buzzer so you don't lose your unammned aircraft. DroneKeeper IIThis should have no effect on the aircarft since the weight is only 4.6 grams..
Introduction

• "The DroneKeeper micro is a “3rd Generation stand-alone operational sound generator” drone position tracker with built-in motion sensor designed to be used with the removable battery."
  

• The removable battery maximizes convenience for the user and is smaller, lighter and tougher than the second-generation DroneKeeper mini.
  

• It is a very useful product that can keep your precious drones from risk of loss.
  

• The most obvious way to find a drone in a bush is by sound.
  

• Possible to recognize the beep sound in a noisy downtown area within a 50~60meter(164~197feet) radius
• "An ounce of prevention is worth a pound of cure."
  

Features

• As a stand-alone buzzer, it can be used regardless of the form of drones or the battery for main power supply of drones.
• The movement of the drone is determined by a motion sensor. You do not need any connection with the drones.
  

• It is not difficult to use because it works immediately when the battery is inserted and only the power is turned on.
  

• The battery can be replaced at any time by using the removable battery.
  

• The battery can use both disposable 1.5V coin cell and rechargeable 3.6V coin cell.
  

• It is small, light, and solidly designed with anodized aluminum structure to safely protect the product.
  

• Depending on your needs, you can change the motion sensor timer and power-on timer settings.
  

• A power-on timer function is built-in to prevent the missing alarm sound from not going off due to the continuous movement of the drone because of strong winds.
  

• Overdischarge protection circuit for 3.6V rechargeable coin cell battery is built-in.
  

• Battery inverse voltage protection circuit is built-in.
  

• Battery low-voltage alarm is embedded.
  

Specifications

Input Voltage	DC 1.5V ~ 5.0V (Disposable 1.5V coin cell, Rechargeable 3.6V Li-Ion coin cell)
Power consumption	Standby: max 14mW, Operation: max 238mW
Battery run-time	Operation: ~ consecutive 2.4 hours for disposable 1.5V coin cell @when missing alarm sound rings ~ consecutive 2.7 hours for rechargeable 3.6V coin cell @when missing alarm sound ringsStandby: ~ consecutive 98 hours for disposable 1.5V coin cell @when missing alarm sound doesn't occur ~ consecutive 30 hours for rechargeable 3.6V coin cell @when missing alarm sound doesn't occur
Sound pressure level	min 85dB @10cm
Operating temperature	-10˚C ~ 50˚C
Dimensions	D15mm x H20mm
Weight	4.6g  without battery

※ Actual battery run-time may vary greatly depending on the ambient temperature and battery manufacturer. ※ Disposable 1.5V coin cell was measured by Energizer. ※ Rechargeable 3.6V coin cell was measured by ZM. Included in the Box                 

• DroneKeeper micro  x1  (※ Battery is not included)
  

Product Views
Battery Usage

• The battery is available with a disposable 1.5V LR44 coin cell (impossible to charge) and a 3.6V Li-ion LIR1254, CP1254 coin cell for charging. Disposable1.5V LR44 coin cell batteries are readily available on/off-market.
• If possible, we recommend that you purchase and use a 3.6V Li-ion coin cell battery for charging. A dedicated charger for charging the 3.6V Li-ion coin cell battery is also sold separately.
• If the battery low-voltage alarm rings during power-on or during operation, the battery must be replaced with a new one.
• In case of a disposable 1.5V coin cell, check the operating time when using the battery for the first time. Some batteries can shorten the usage time dramatically.
• Place the battery flat to prevent it from tilting. Do not reverse polarity. This product comes with electrical inverse voltage protection, but please note, the physical short of battery is not protected.
• Using of several disposable 1.5V coin cell batteries alternatively, will let you use longer. Reusing instantly after ringing of missing alarm will cause the battery low-voltage alarm due to sudden battery voltage drop. In this case, it is possible to use again after neglect it for long hours. (Note: It is only applied for the battery which has not been used for long hours)
• If the battery low-voltage alarm is still ringing after neglect for long hours, or if the power is not turned on, change it to new battery.
• We strongly recommend to use the Energizer or Bexel for a disposable 1.5V coin cell battery.
  

Here is there website for more details:
http://www.nichemall.net/index.p ... oduct&product_id=54

Hi FLPilotShark. Thank you for sharing this information with us. Just a reminder that we do not recommend using 3rd party devices for DJI Drone. 3rd party devices might affect the drone or its component and can also affect the performance of the drone when in use.