The integrated rear brake light and the front light are awesome, they are connected to the main battery. If you pull the brakes you can see it comes on.
To turn the lights on, you press and hold the red button for three seconds and the light comes on. Press and hold to turn it off.
The lights are powerful, and the front LED can be seen on bright days.

There is no LCD display as well pedal assistance. The display to the right of the bar shows the battery status and there is also a throttle.
The throttle only works after you start cycling. In other words, you need to start pedaling to activate the motor. Once the bike is moving you can use the throttle all the time.
The green bottom is the cruise control trigger and it really works well. It can be activated at any speed.

If you don’t want to use the electric on it, you can just pedal like a usual bike, but the one-speed gear is quite limited, so don’t expect much of pedaling in this bike.
But pedaling with the electric on will give us some extra range for sure.
There is no electric horn, but it comes with a small bell though. 

36V 6.0AH
Battery

350 W
Motor

14″ Tires
Pneumatic

25km/h
Max Speed

The max load recommended is 120KG and it fits riders from 145cm to 185cm.
In the rear wheel is the 350-watt motor which is a good size for such folding bikes, normally with 250 watts.
It definitely helps climb the hills, but it’s not that strong.

The B20 is IP54 waterproof certified, but I wouldn’t use it in heavy rain.
Folding the bike is easy, fold the plastic pedals, then unlock the main fold quick release you have to pull it up to release the locking mechanism and from there you can fold the frame, put the quick stand out of the way, unlock the handlebar locking ring, and flick the main bars down and they will just fold.

Remove the saddle if you need it super compact.
The saddle is surprisingly comfortable and the kickstand isn’t bad either. It firmly supports the bicycle. The B20 comes with a pair of plastic fenders and all the assembly tools you need.
After a couple of days of using this bike, always peddling to improve the range, the real range for me is about 16 and 17 kilometers. I am 178cm and I weigh 80kg, so it might change for other riders.

I think overall it’s a good bike if you are looking to commute or looking to nip around to the shops.
I would love to be able to raise the saddle higher and raise the bars up and down as well. The build quality is good, but there few areas on which could be improved such as the saddle tube.
For the money that you’re paying for what you’re getting you have to accept some compromises somewhere down the line.
Being a foldable e-bike, the portability is the great Pro of this bike, you can definitely take it anywhere, even inside small cars trunks. 

You can buy the B20 at windgoo.co for 489 Euros.
It is very fast shipped and arrives shortly after ordering it. It comes with a 2-Year warranty and if you change your mind or something isn’t quite right,
Windgoo offers free returns and exchanges on all orders.