USB devices that are not really necessary should be considered when buying

When the USB protocol was born, few people could imagine that a small port would help open up a diverse world of devices such as keyboards, mice, smartphones and portable hard drives.

However, besides useful products, the market is also flooded with unnecessary and even disappointing USB devices that users should avoid buying.

Handheld blender

Although it sounds convenient, the reality is that these products are often of poor quality, have quick battery drain and weak motors. Users have reported that the Linsar blender model runs out of battery very quickly, and even stops working unexpectedly. Instead of investing in a hand blender, users can simply shake a bottle of water or use a spoon, which is both effective and economical.

Hand blenders consume a lot of battery

PHOTO: AMAZON

USB mini fridge

Advertised as an economical solution for keeping drinks cold, USB mini fridges do not have a compressor or refrigeration cycle like a regular refrigerator. They operate on thermoelectric cooling technology, but the efficiency is very low. A USB mini fridge can cool, but it cannot compare to the cooling capacity of a traditional refrigerator. In fact, one study found that mini fridges use more energy than regular refrigerators.

Rollable silicone keyboard

This design seems convenient for moving and suitable for dusty working environments, but many users point out that the disadvantages of the keyboard far outweigh the benefits. For example, the Sungwoo brand's silicone keyboard model often has problems such as easy to break and the keys need different pressing forces to operate correctly.

Paper shredder

In the face of rising identity theft, protecting personal information is paramount. However, despite their advertised convenience, compact paper shredders like Yipgou’s don’t live up to expectations. Amazon reviews show that the product frequently clogs and isn’t powerful enough to effectively shred documents.

Portable paper shredders don't work very well.

PHOTO: AMAZON

Washing machine

While the idea of ​​a portable washing machine may be appealing, the reality is that they don’t work effectively. The small size of a portable washing machine doesn’t provide enough power to clean clothes when one can easily do the job by hand in a sink or bucket.

Source: https://thanhnien.vn/nhung-thiet-bi-usb-khong-thuc-su-can-thiet-nen-can-nhac-khi-mua-185251125160458155.htm