It is a 6-inch eBook reader with E Ink Letter display with a resolution of 300 dpi and can play MP3 files.
This device uses the E Ink Letter HD screen (1072 x 1448 pixels) and 300 dpi, which guarantees a high contrast and sharpness of the contents presented.
The new reader adds a new feature for people who like to listen to music while reading. PocketBook Touch HD has the necessary functionality to play audio files since it is compatible with the MP3 format, which the Kindle does not own
eReader and mp3
It has a standard 3.5 mm audio jack. Users can transfer music to the reader and enjoy it while reading. The configuration of the sound parameters is simple and does not require the interruption of the reading.
This same function also allows you to listen to audiobooks. Electronic readers now have two options:
Reading books or listening to them professionally made version
The degree of IP protection refers to the international standard IEC 60528 Degrees of Protection1 frequently used in the technical data of electrical or electronic equipment. Generalized for industrial use as sensors, meters, controllers, electrical boards and of course mobile phones ,tablets and eReaders.
It is a system to classify the different degrees of protection provided to containers that protect the internal components of the equipment.
It is a standard of numerical code and we take the example example:
Electronic ink is a very particular type of screen, which does not emit light, so it only uses the battery when it modifies its contents. Well, now we know the Sony DPT-RP1, a 13.3-inch touchscreen electronic ink that borrows many ideas from popular eBooks.
The electronic ink, for now
only works well with grayscale images, and requires a good light to see it, because it has no backlight. Therefore, the Sony DPT-RP1 is a product halfway between a tablet and an eBook.
At the functional level, it allows you to read PDF documents on your screen with 1,650 x 2,220 pixels (can be converted from other formats), with up to a month of autonomy.
Sony DPT-RP1 offers a 13.3-inch screen
Does not include Android or other advanced system.
This is a selection of the best Travel Power Banks to charge any electronic device during a trip. Smatphone, eReaders or any accessory that can be charged by USB port. There are available from 1,000 mAH to 85,000 mAH.
To provide power to your travel devices, up to 89800 mAH
We can find external batteries of great quality from US $ 20 to no more than 50-60 euros. Cheaper batteries usually have a capacity of 10,000 mAh, enough to charge an iPhone up to 3 times. While the most powerful batteries have up to 85,000 mAh load.
Capacity
All the models in our list have a minimum capacity of 10,000 mAh to be able to charge the mobile phone at least 3 times. The most powerful batteries, + – 26,000 mAh allow to charge our mobile at least 8 times
Weight and size
Again, the weight and size are linked to the load capacity of the external battery. lighter batteries can weigh less than 10 oz (250 grams) with very small dimensions that make us not realize that we are carrying them. The most powerful external batteries usually have a weight of around 20 Oz (500 grams)
Security
Verify that the models have the latest advances in security:
Protection against overheating
Overcurrent protection
Overvoltage protection
Protection against short circuits
Departure ports
Most of the best Trip Power bank have at least 2 output ports to be able to charge two devices at the same time. Some chargers have up to 5 output ports between USB, lightning, micro USB …
Ports of entry
The vast majority of chargers have a single input port to charge the external battery from the electric current. However, there are chargers that have 2 input ports reducing by half the charging time of the external battery if you have 2 cables.
Warranty time
All models have at least 1 year warranty by the manufacturer. The vast majority have 18 months and some of them have a lifetime guarantee!
Dual USB output charging ports and Charge Fast: allow you to charge 2 digital devices simultaneously, also, it charges your phone very fast with the 2.1 usb port
Built in 2-Prong AC Plug Travel Charger Compatible for MacBook, Surface Pro, Dell XPS 13, iPhone Xs, Galaxy S9, Note 8
Check if an external battery is suitable for air travel
The regulation specifies that the nominal capacity must be less than 100 Wh (Watt-Hour). That is to say: any power bank with a capacity lower than 27000 mAh (at 3.7V) is apt to be carried on an airplane as carry-on luggage. – See the TSA regulations–
How is the nominal capacity calculated in Wh?
Normally, the Travel power bank specification sheet usually indicates its nominal capacity in Ah and Wh but, if you can not find it, you can calculate it for yourself:
As you already know, a power bank consists of a set of lithium-ion batteries of a certain capacity and a voltage between 3.6 Volts 3.8 Volts.
To know the nominal capacity in Watt-hour (Wh) you must multiply the total capacity of the power bank indicated in mAh by this voltage and divide by 1000:
Rated capacity (Wh) = (mAh x V) / 1000
For example: An external battery with a capacity of 20000 mAh and a voltage of 3.7V, the nominal capacity will be:
Rated capacity = (20000 mAh x 3.7V) / 1000 = 74 Wh <100 Wh
Laptop & Smartphone Travel Power Bank
185Wh/50000mAh(Max.130W) Portable Laptop Charger External Battery Pack for Laptop-Dell HP Lenovo Surface pro Sony Samsung Acer Toshiba iPad Phone Notebook – MAXOAK on Amazon.com
For those who want to enjoy a good book by the pool or while bathing without fear of damaging their eReader, Amazon introduces the new Kindle Oasis. It’s your first waterproof electronic reader.
Tablets and phones are great for basic activities, but they do not offer the best reading quality. The best option for this purpose are e-Readers, which are specially designed for reading e-books. Thin and compact, they can be used for several days on a single charge, and they have non-reflective screens that do not tire the eyes.
