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
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Year: 2018
Audio technica noise cancellation ATH-AN...
The Audio Technica ath-anc33is noise reduction earphone. I found it to be a very good earphone for a very reasonable price it has a long cable with a clip. It is not so heavy and last for long hours. The inside with the battery AAA compartment. The battery lasts many days. At least a few […]
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, see below. (Full Spectrum E27 3W 60 LED Grow Light 41 Red 19 Blue For Plant Hydroponics AC220V) It is not very safe as the LEDs are […]
Dyson defect battery
This Dyson battery started blinking red for ever. So here what I found in this battery of Dyson. I suppose it is the same on pretty much all Dyson Vacuum Cleaners like the Dyson V10 or Dyson V11. I think this one was a Dyson V8. The cells are 18650 Li-Ion Cells. I measured the […]
Mosquito repeller by ultrasounds
This mosquito repeller is producing high frequency noise (a high pitched beeeeeeeeeepppppppp) to scare mosquitos away. Does it work? I still have to make sure it works by going to a mosquito infested area 🙂 mosquito repellent device with solar charger.
Secret code banking calculator
Security pin calculator
eBike battery Bionx
Micro usb to usb C converter
Dangerous chinese travel adaptor 4.2volt
This is a very dangerous travel power supply 4.2 Volts from China power supply out of China with bad soldering and dangerously small tracks PC Board of the power supply hd-025a 4.2V power supply from China