NooElec JYETech DSOShell Fully Assembled Portable Oscilloscope w/Enclosure & 10x BNC Probe Low Cost Digital Storage Oscilloscope with 2.4" TFT LCD. Model DSO150 (DSO 150); SKU 15001

I got this after watching youtube clips on setting up for maximum sound performance.At first it took me some time to find out work out how to use it but after youtube guides helped out, I figured out how to use it. I have a subwoofer controller with a clip light and with this oscilloscope I was able to make my adjustment suit my sound. Be mindful that this tool gives a good indication of the clipping rate but shouldn't be compared with more professional oscilloscopes.Two annoying issues is that it did not come with a power supply (£5 extra) and the correct lead (another £5 extra) to plug into the positive and negative points for my amp.Good for a cheap set up and intro the scopes.

I purchased this 'scope in order to more accurately set the azimuth alignment alignment on my turntable.Regardless of how I set the trigger the display jumped all over the place. Every time I adjusted either the voltage or time base the trigger would jump to a random level. The only useful thing that I managed to glean was that the turntable was running at the correct speed, the frequency display at least seemed to be accurate.This item was completely useless for the purpose for which I purchased it. I returned the item and was given a no quibble refund.

This is a very good little scope which works very well. Display is nice and clear and the image is nice and stable.No power supply is included but it runs on two 18650 lithium batteries connected in series fully charged at 8.4v so no chance of over powering the unit. It will run as low as 6v so batteries work for a long time on a charge. There are plenty of reviews on Youtube.

Well designed product useful for analysing audio frequency signals. There are good videos on how to use it on YouTube.

Arived faulty, after numerouse pictures and descriptions of fault the so called "engineer" was still unable to see what was wrong. The item requires an external power supply and the seller appears very poor, spend the extra £10 for the KKmoon version would be my advice.