JHE42B Banggood quadcopter finder buzzer

Here the photos of the Banggood JHE42B buzzer finder for quadcopers and drones and airplanes. It died without notice so I opened it to see what it contain and what could be the reason (you will see on the photo…

Garmin Vivoactive HR teardown

Unfortunately my garmin vivoactive HR got into the water and died. So here it is in pieces… Sadly the Vivoactive is not made for swimming which I forgot as I also have the Garmin Forerunner which is Ok in the…

Cheap airline earphones

This is how cheap Airlines earphones look like dismantled. You can see the membrane and the coil of the earphone. This is the magnet of the earphone

Audio technica noise cancellation ATH-AN...

This is a really good noise cancelling earphone from Audio Technica. The ATH-ANC32is just does not have the microphone.

Banggood grow light 3W SKU753068

This is a grow light for plants that live inside. It should provide just the right light the plant needs to grow effectively. It is not very safe as the LEDs are in serie (60 of them) and the voltage…