Invisible Ink Pen with UV Light Review

This invisible ink pen (sku.88) is a funny and useful product sold at Dealextreme (and some others stores). With it, you can write hidden messages on a paper and then, when you turn on its UV light and point it to the message, it will be revealed (see the video below).

Besides the invisible ink, it contains an UV led (to reveal the written messages) and 3 (three) AG3 batteries.

Its size and weight are similar to a regular pen, so you can carry it everywhere.

Style

We acquired six invisible ink pens from Dealextreme. The only difference among them was the package (see the images above).

About the colors, it seems that Dealextreme and Focalprice sell only one color (purple). Suntekstore says that it has this item in many different colors (according to the description and images). Tinydeal sells a version of this item in red with some images on the pen, but the essential of all of them are the same (invisible ink pen with an UV light).

Price

The invisible ink pen is very cheap and can be found at Dealextreme, Focalprice, Tinydeal and Suntekstore for about $1.35. Tinydeal also sells an item pack that includes 3 invisible ink pen for about $4.4.

Build Quality

Regarding the build quality, there is not too much to comment. You just need to avoid hit the UV led, because it can stop working.

One day the invisible ink will run out, so you may think to fill it again, but the invisible ink pen is so cheap that it is worth to buy a new one than to refill the current.

Usefulness

As we mentioned, you can use it to write hidden messages on a paper, wood, skin, metal, wall, cloth and some other stuff. That is not so useful, but it can be very funny if you show it to your friends.

Another usefulness is to use the ultraviolet light (UV led) of the invisible ink pen as a counterfeit bill detector. Just turn on the UV led and point it to a bill to see some watermarks present in legitimated bills.

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Review - Portable MP3 Player with TF Slot (micro SD)

This portable MP3 player (sku.58281) has a TF slot (push-push type) for micro SD cards (not included), plays MP3 musics (it does not plays WMA), has a mini USB connector, does not have the shuffle function, has a 3.5 mm audio socket, has a clip-on design and does not have a LCD screen.

Actually, besides the MP3 player, the package contains also an USB cable of 80 cm (USB to mini USB), a white earphone (the MP3 player does not have a speaker), an English user manual and a box containing all these items.

Because of its clip, the compact design (10.5 x 5.3 x 4.3 cm) and its weight (86 grams), it is easy to carry this portable MP3 player with you.

Style

This portable MP3 player with an iPod shuffle style is sold in different colors. Tinydeal and Focalprice also sold it in different colors, but Tinydeal only sells the portable MP3 player and a micro SD together, which is a little more expensive.

Anyway, below are some links to the different colors.

Dealextreme: black, blue, green, silver, golden and rose red.

Focalprice: green, blue, pink, silver and black.

Some descriptions say that it supports up to 8 GB and other say 4 GB, so we are not sure of which one you will receive. We tested our (bought at Focalprice) player just with a 2 GB micro SD.

Ease of Use

To use this portable MP3 player you just need to turn it on and connect an earphone. It will plays automatically any MP3 file that is stored in the micro SD.

As we said, it does not have a LCD screen, so to control the playing you have to use the buttons "Play/Pause", "Next track", "Previous track", "Volume up" and "Volume down". The manual says that if you hold the "Play/Pause" button for 3 seconds it will toggle the "Hold function" ON and OFF, but we did not manage to do that.

Some descriptions say that this MP3 player also plays WMA music files, but our product did not plays WMA files neither recognizes folders.

While playing or recharging, there will be a light turned on at the same side of the micro SD. Unfortunately, there is nothing indicating that the MP3 player is already recharged.

Build Quality

Starting with a good thing, this portable MP3 player has a TF slot connector of the push-push type, which makes easy to put and remove the micro SD. Just push the micro SD in the slot until you hear a click (put and remove).

The buttons are a little hard to press. Sometimes you press the "Next track" button, but the player recognizes that the "Play/Pause" button was pressed.

Besides the MP3 player emit a loud sound, do not expect too much from the earphone that come together. We recommend that you buy a better one.

Regarding the battery, the working time of this item is about 3 hours and the recharging time is about 4 hours.

Our product box came with some cracks, but it is probably a shipment problem (see images). If you intend to keep it to yourself then that is not a big deal.

Price

It cost about $6.0, which is considered cheap for a portable MP3 player, an earphone and an USB cable, but you must remember that it will be necessary to buy a micro SD separately.

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LED Flashlight Keychain 22000 mcd Review – 10 pack

This LED flashlight keychain (sku.1100) is a small item, but it is big deal that you can buy at Dealextreme, Focalprice or Tinydeal. It has a bright light (22000 mcd according to the specifications), is lightweight (about 7 grams each one), is powered by 2 (two) CR2016 batteries and, besides the simple ON/OFF button, it has a switch to keep the light on (powered) without pressing the button (if you prefer). By the way, instead of 1 (one), this item has 10 (ten) LED flashlight keychains.

Style

We ordered this item only at Dealextreme, but we also found it at Focalprice and Tinydeal. According to the specifications, they all sell the same product (10 LED flashlight keychains) and have different color versions (plastic).

The color versions that they sell are:

• Dealextreme: white, black, yellow, pink, purple, blue and green.
• Focalprice: green, pink, purple, yellow, blue and black.
• Tinydeal: green, blue, red, yellow and black.

Price

This pack with 10 LED flashlight keychains costs about $4.5 in each store (each LED keychain will cost just $0.45!!!). Even if 10 (ten) keychains are too many, you can buy and give some to someone else as a gift, because they are too cheap.

Build Quality

The build quality of each flashlight keychain is good, specially the LED, which has a bright light (22000 mcd), but sometimes you may receive a damaged LED that does not turn on (problem in battery or LED). For example, we bought 10 (ten) flashlight keychains, but 1 (one) did not work.

Usefulness

This product is useful at the same situations that regular flashlights are, such as using it at dark environments or using it at blackouts. However, this LED flashlight keychain has the advantage of being small, which allows you to carry it everywhere you go.

If you intend to use it frequently, we recommend that you buy reserve batteries, because eventually the batteries will run out.

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Neodymium Magnetic Balls 5mm Review - Black

This curious item sold at Dealextreme (and others similar websites) is a pack containing 216 magnetic balls (a.k.a. buckyballs, neocubes and zen magnets) and a steel case. More specifically, these balls (or spheres) are neodymium magnets, the most widely-used type of rare-earth magnets (neodymium magnets are also know as NdFeB, Neo or NIB magnets).

Each sphere of this particular item (sku.30801) has 5mm of diameter and is black, but there is others sizes and colors as you will see below.

Style

We have acquired only the item with 216 black magnetic balls of 5mm, but there are others items with different colors, quantity of balls and diameters. For example, if you did not liked the black color, then you can buy the gold color or the silver color version of this same item. Or then, if you think there is too much spheres in the package, then you can buy a pack containing 100 balls, 20 balls or only 10 balls.

Price

This item is sold for about $26 (twenty-six) which, compared with others websites similar to Dealextreme, is a little expensive for a toy. For instance, Focalprice also has an item with 216 black neodymium magnetic balls of 5mm for about $15 (fifteen), which saves $11, but we cannot confirm if these two items have the same magnetic power.

Usefulness

These neodymium magnets are only a toy, but they are very strong magnets and very addictive. You can play for hours building shapes, patterns, sculptures and what else your imagination can think.

As they are very strong magnets, at first, these balls seem a little difficult to handle, but after a few hours playing with them you end up figuring out a way of handling them (a card is very useful).

Be careful, because these spheres can be eaten by children or pets.

If you got curious about these neodymium magnets, then watch the video below.

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