Drones and quadcopters are without a doubt among technology’s greatest products in the world of leisure and entertainment. Fun with these two cuts across all ages and personality types and gives the user an experience to remember. Drones in particular are super fun and if you got to fly one, nobody would blame you for acting like a professional drone pilot for a little while. This is because they are so well crafted and authentically designed that you actually look and feel like you are working with a real life military drone. One of the best in the market is the DJI Phantom 4. This beauty is a product of the DJI Company and you are therefore sure that no expense was spared in its design and assembly.Features of the DJI Phantom 4
The DJI phantom 4 has managed to compete with other fantastic drones in the market due to its great features. These include:

• 720p HD Camera 

This is probably the best part of the entire drone. The camera takes pictures and records images that are streamed live to the controller. This feature can be great for anything including surveillance and simple nature appreciation like bird watching or sunset recording. The camera pixel power ensures that the images are all high quality so that you can enjoy and share the saved products later.

• Multiple flight modes

You can choose from the different modes available using the controller. The two most amazing are the tap-to-fly mode and the sport mode. The easiest way to describe the tap-to-fly mode is by comparing it to a real aeroplane’s autopilot system. All you have to do is double tap on the controller for it to set off and relax as its system does the rest for you. The sports mode on the other hand is designed to give you the actual authentic drone control experience. Here, you get to do all the work by controlling the drone.

• Remote controller with an LCD screen

This allows you to control and navigate the drone in flight. It also receives live video streaming and images on the screen for you to monitor the drone’s surroundings for better control. Finally, the remote controller is useful for changing between different modes and flight speeds for the best results and more importantly, for the best flight experience.

• Obstacle sensor

This is one of the most intriguing and unique features of the DJI phantom 4 drone. It is equipped with sensors that recognize obstacles in the flight path and an automated system that navigates the drone away from them. The sensor usually works when the drone is on its autopilot tap-to-fly mode.

• GPS-independent tracking system

This feature is proof that the DJI Phantom 4 can be used not only for leisure but also for serious work such as surveillance. The system enables the drone to identify and silently keep track of a specific object. It does not require things like beacon signals and GPS to keep the target within its sights.

• Flight time and control range

You can have fun with this drone for up to 28 minutes without needing to recharge. This is better than the flight times for most of the other models in the market that average between 20 and 25 minutes. In addition to the extra-long flight time, the DJI phantom 4 offers users a control range of up to 5 km. This is a large transmission range for a drone and means that you can control it and receive high quality feeds from very far away without any trouble.

• Quadrangular design with 4 pairs of propellers and landing stands

This design in addition to adding aesthetic value increases the aircraft’s stability. This makes it more flexible and sensitive to directional changes. The landing stands are quite self-explanatory and are there to help you stabilize the drone when landing and simply when not in use.
Pros and cons of the model
Pros

1. It has a user-friendly control system.
2. It is stable, flexible and very easy to control.
3. It is aesthetically appealing with the frame design and the classic white color.
4. It is less likely to get damaged by flying into objects due to the obstacle sense and avoid system.
5. It has a long flight time.

Cons

1. Image quality becomes lesser as the drone moves further towards the 5km limit.

DJI Phantom 4 vs older models
The DJI Phantom 4 is a major upgrade of the Phantom 3 and Phantom 2 models. One of the biggest improvements is in terms of flight time and control range where the phantom 4 model is way more superior to its older counterparts. It also has the sense and avoid system which is absent in the other two. Other than that, most of the other features are basically the same with only a few minor but effective upgrades in the Phantom 4 model.
Bottom line
After all is said and done there is no denying that the DJI phantom 4 drone is a force to reckon with. So whether you are in the market for a fun new toy or a surveillance tool for work it is definitely worth your considerations. With all these amazing features, there is quite literally no chance of you getting disappointed.

The Amazon Tap is a wireless, Alexa-enabled portable Bluetooth speaker. Just tap the microphone button and ask for music from Prime Music, Spotify, Pandora, iHeartRadio and TuneIn. The device uses the Alexa Voice Service when connected to Wi-Fi or a mobile hotspot to play music, read the news, provide weather reports, and even order a pizza. It delivers sound powered by Dolby -- with dual stereo speakers that provide 360-degree omni-directional audio -- and provides up to nine hours of playback.

Cost: 129.99

​General
The Parrot Rolling Spider is a small quad copter…quite a bit bigger than most nano-sized units and even slightly bigger than the popular micros like the Hubsan X4. It is vastly different that most “toy grade” micros in that it contains more sophisticated sensors and programming. Stability is achieved with the combination of data – as Parrot describes it “Provided by data fusion of an ultrasonic sensor, a 3-axis gyroscope and 3-axis accelerometer, a vertical camera and a pressure sensor”.Most smaller quad copters only have the 6-axis gyro’s and accelerometers, meaning this is a much “smarter” machine. The ultrasonic sensor is sonar which is bounced off the ground – the pressure sensor is a barometer, which knows comparisons of height. The vertical camera is used to determine position based imaging changes. It also can take low resolution photos straight down.While greatly limited in terms of precision control, distance flown, etc. the Rolling Spider still presents an interesting quad copter for many. It’s probably the first machine I would buy for my parents (80+ years old) or others who are never likely to become familiar with larger and more complicated machines. I think the best description of this quad copter is “toy gadget” since it serves absolutely no function other than fun and demonstration.
What’s in the Box?
Not much! You get the Rolling Spider, a USB cord for connecting it (this charges the battery) and one removable battery along with the wheels. The quad can be used with or without the wheels – although the wheels are suggested for indoor flight and for protecting others you may be flying near. A spare set of props is not provided. As of this writing, spare batteries are about $20 and props about $6.
The lack of a separate battery charges is a big minus. I’m sure Parrot or others will release them soon so that Spider owners can charge more than one battery at a time.
Preparing for Flight
The Rolling Spider comes fully assembled except for the wheels. You’ll need to install the Parrot Free-flight app on your choice of smartphone or tablet and insert and charge up the included battery using the USB cord and your choice of USB charger (your computer or a USB wall plug). The battery takes 90 minutes for a full charge, so don’t expect much fun in between your wait times!
The Pros:
1. Top notch engineering and design – the body, arms, etc. are far and away better than similar toy models.
2. Built-in sensors – it uses a combo of 6-axis, barometer, sonar and pictures to keep it’s stability. Again, you won’t find that in any other quads down in the gadget price range.
3. Ease of use for basic moves such as taking off and landing
4. The wheels – this is pretty cool stuff for using inside and climbing walls. 
5. Lots of options and settings within the FreeFlight program.
6. Built using Linux – computer geeks will likely be able to further program this in the future.
The Cons:
1. Expensive
2. Bluetooth with short range
3. Relatively short flight times
4. No separate battery charger (yet).
5. App control is very imprecise