Comparison A4Tech Bloody R8 vs A4Tech Bloody V8

The type of connection used by the mouse.

All types of mouse connection can be divided into wired and wireless. There are also combined models that allow both methods; however, for a number of reasons, they have not received much distribution.

Wired mice can vary in connector type; however, the universal standard nowadays is USB, other options are much less common (see "Cable" for them). Anyway, such mice are much cheaper than wireless counterparts, moreover, they do not require batteries / accumulators and have an almost unlimited lifespan. On the other hand, the wire restricts mobility and can be inconvenient when connecting, especially if the computer is located far away or in a hard-to-reach place.

Wireless devices, in turn, can connect via radio, Bluetooth, or Wi-Fi ; in some models, two options are combined — at the user's choice, (usually radio and Bluetooth). Regardless of the interface used, all such models are more convenient than wired ones due, in fact, to the absence of a cable; and their range is at least a few metres, so a wireless mouse can also work as a kind of remote control. At the same time, a wireless connection is more expensive than a wired connection, and besides, it requires autonomous power supply — as a result, the per...iod of continuous operation of the mouse is limited.

As for the different types of wireless connection, here are their features:

— Radio. To connect over the air, usually, a wireless adapter is used, which is connected to the USB port of the computer. This method is convenient in that it can be used with any computer, including systems that do not have built-in Bluetooth or Wi-Fi modules. The disadvantages of this option include the fact that the adapter requires a free connector; as a result, with a small number of USB ports, difficulties can arise. However, this moment, if necessary, can be easily corrected by connecting a USB hub; so it is this connection method that is most popular among modern wireless mice.

— Bluetooth. The main advantage of this connection method is that many modern devices — laptops, most monoblock computers, smart TVs, etc. — have built-in Bluetooth modules. Thus, you can connect the mouse to such equipment directly, without occupying hardware connectors. And for PCs not equipped with internal Bluetooth modules, appropriate adapters are available (which may even be included with the mouse). In addition, some advanced models with such a connection are able to remember several Bluetooth devices at the same time and switch between them literally “with the touch of a button”. The Bluetooth communication range is at least 10 m with line of sight.

— Wi-Fi. A rather specific option, which is extremely rare — in certain models of laptop mice (see "In the direction"). In many respects it is similar to Bluetooth — in particular, it is designed mainly to work with built-in modules and allows you to use a mouse without occupying hardware connectors. At the same time, the range of communication via Wi-Fi is much greater. On the other hand, this advantage is not of fundamental importance, and on the technical side, the creation of Wi-Fi mice is associated with certain difficulties. That is why this type of connection has not received distribution.

Interface used for wired connection in mice that have this capability (see "Connection type").

The most popular nowadays is the connection through the classic USB port. Mice for the newer USB-C connector, for a number of reasons, are produced quite a bit, despite the advanced capabilities of this interface. And PS/2, on the contrary, is gradually giving way to newer and more advanced standards. Here is a more detailed description of each of these options:

— USB. Connect to a traditional, full-size USB port (called USB A). Such connectors are extremely widespread: they are practically mandatory for modern PCs and laptops, and are also used as standard for working with peripherals in smart TVs, media centers and other types of electronics. That is why the vast majority of wired mice use this connector.

— USB-C. The newest (for 2020) type of USB connector; is significantly smaller than the USB A described above, as well as a convenient double-sided design. Such connectors are increasingly used in modern PCs and laptops, but very few mice are made for them; this is due to several reasons. Firstly, advanced versions of USB are often implemented through the USB-C connector, with high speed and high power supply; for mice, these characteristics are not needed, but they can be useful for more demanding devices. Secondly, the USB-C hardware socket can b...e used for interfaces other than USB (primarily Thunderbolt v3 and v4). Thirdly, it is simply easier to get into the full-size USB A connector with a plug — especially when trying to blindly find the connector on the back of the system unit. In light of all this, only a few laptop mice are produced under USB-C (see "In the direction").

— PS/2. A specialized connector with a characteristic round shape, used exclusively for keyboards and mice; colloquially known as "pee in half". PS/2 inputs are found exclusively in desktop PCs — they are too bulky for laptops. In general, this interface is considered obsolete and less used, but it can still be found in modern computers. At the same time, PS/2 has a very practical advantage: connecting a mouse to such a socket allows you to leave an additional USB connector free, which, in turn, can be useful for other peripherals. However, mice with only such a plug nowadays are almost never found — devices that can also connect to USB have become more common (see below).

— USB or PS/2. This option most often means that the mouse itself is equipped with a USB plug, and an adapter for PS/2 is supplied with it. Thus, the device turns out to be as versatile as possible in connection; at the same time, adapters are very inexpensive, their price is almost invisible compared to the cost of the mice themselves (even inexpensive ones). Therefore, most modern manipulators with the ability to work through PS/2 belong to this category.

The type of power used by the wireless mouse (see "Connection Type").

Modern mice can be powered by replaceable cells, by a built-in battery, or by a mousepad. The first option is good because dead batteries can be replaced with fresh ones in a matter of seconds, no need to waste time charging. At the same time, replaceable cells are sold both in the form of disposable batteries and in the form of rechargeable batteries, which gives the user a choice: to buy inexpensive batteries regularly or to spend money on a battery (s) with a charger once. Here are the main sizes of such elements found in modern mice:

— AA. Widely known "finger" batteries. A fairly common option, although less popular than the smaller AAA — in fact, because of the larger size, poorly suited for compact mice. On the other hand, AA cells have higher capacitance. The number of such batteries can be different, most often there are models for 1xAA or 2xAA.

— AAA. "Mini finger" or "little finger" batteries. More compact than AA, due to which they are widely used in modern mice. The capacity of such elements, however, is lower, however, mice do not consume so much energy, and even with 1xAAA power supply, battery life can be calculated not only for months, but for years. Also, there are often models on ...="/list/267/pr-15332/">2xAAA, and extremely rarely on 3xAAA.

As for other ways of eating, their features are as follows:

— Accumulator. Own built-in battery is convenient primarily because it is initially included in the package, you do not need to buy it separately. And the further operation of such a mouse does not require additional expenses — it is enough to charge it from time to time. In addition, batteries can be made more compact than replacement cells. There are two main disadvantages of such a power supply, compared with the same batteries. Firstly, this is less battery life — in the most "long-playing" rechargeable mice, the battery life does not exceed 120 days (for batteries, this is a very limited indicator). The second point is the inability to quickly remove and replace the battery. This means that with a dead battery, there is only one option — charging, and it takes time; however, many mice allow use directly in the process of charging. But if the battery fails, at best, the device will have to be carried to the service, at worst, it will be changed entirely.

— From the rug. Quite a specific option: powered by a special pad that transmits energy to the mouse wirelessly. The pad needs to be connected to a computer port (usually USB), so such mice are very conditionally wireless. One of the advantages of such models is that they do not need to monitor the battery status. On the other hand, you can use the mouse only with the supplied mouse pad; if it is missing, the device becomes useless; and freedom of movement is limited by the length of the wire. Thus, mice with such a power supply do not actually have key advantages over wired models, and they are much more expensive. So nowadays, food from the rug is extremely rare.

— USB receiver. A device that is found only in models with wireless connectivity. Such a receiver is connected to the USB port of a computer or laptop, and communication is carried out through it. This is the way all mice with a radio connection work, for them the presence of a USB receiver in the kit is almost mandatory. At the same time, this accessory is also found in the Bluetooth model — in them it plays the role of an adapter for equipment that is not equipped with its own Bluetooth modules.

— Replaceable legs. Legs are small protrusions on the bottom surface of the case, on which the mouse rests, standing on the work surface. They reduce resistance, allowing the device to slide freely in any direction, and also compensate for minor irregularities to a certain extent. However, due to constant friction, the legs are subject to heavy wear, over time they wear out or may come off. Thus, modern mice may come with interchangeable legs; such a complete set means that regular overlays can be easily removed by the user.

— Interchangeable side panels. A feature found primarily in game models (see "By Direction"). At the same time, the purpose of removable panels can be different. So, in some models, they are used to fine-tune the width or overall shape to the user's hand. In other devices, rearranging the panel allows you to change the functionality — for example, install four side button...s instead of two, providing additional features in games (and return the panel with two classic side buttons back while surfing the Internet and other everyday tasks). Such nuances should be clarified in each case separately.

— Replaceable top panels. Additional components that can be installed in place of the standard top of the mouse to change its appearance or ergonomics. Their support is implemented in some models of gaming mice (see “Direction”). Replaceable top panels provide the ability to customize the mouse to suit individual ergonomic preferences, and they also serve as a stylistic element in the design of the manipulator.

— Rug. Mice that use the mouse pad as a power source are required (see "Power"), but this accessory can also be supplied with more traditional models. In the latter case, it is worth clarifying what material the pad is made of, what dimensions and design features it has — these points may not meet the user's requirements, in many cases it is more convenient to buy an underarm pad separately.

— Case. The cover will be appropriate if you need to regularly move the mouse from place to place (for example, for frequent competitions or with a work laptop). In a protective case, your “rodent” will not be afraid of external damage to which a mouse can be subjected even while in the personal compartment of a backpack.

— Additional switches (mics) — for example, spare switches of the same type as regular ones, or interchangeable ones that differ in characteristics.

— Interchangeable side buttons. Separate side buttons that can replace regular ones. These may be keys of a different shape or spare parts of a similar design.

— Interchangeable top panels. Used to change the design and/or overall shape of the upper part of the case. The latter allows you to further adjust the mouse to the user's personal preferences — for example, change its height or turn a symmetrical device into an asymmetric one, for one or another hand.

— Stickers. Decorative stickers that allow you to personalize your device, giving it an original look.

— Additional cable. A replacement wire that differs from the main one in length and/or other characteristics (for example, the presence / absence of a braid).

— Headphones. Gaming computer headphones supplied with mice of the corresponding specialization (see "By Direction").

— Docking station — provides convenience in charging and storing the wireless device.

The total weight of the mouse. For models with a wired connection, usually, it is indicated without cable, and for devices with weight adjustment (see above) — without weights.

This parameter is important primarily for professional gaming applications, although it is often relevant for ordinary users. Theoretically, less weight promotes speed and reduces fatigue. At the same time, in fact, much depends on the personal habits and preferences of the user: a mouse that is too light may “not be felt in the hands” and not give familiar feedback. Therefore, although most mice have a lower weight limit of 60 – 80 g, however, even among professional gaming models there are much more massive devices — 120 – 140 g or more. The lightest variety of "rodents" is laptop (see "In the direction"), among them devices come across and less than 60 g.

Also note that the weight to some extent depends on the size and “tricked out” of the device, but there is no unambiguous dependence here: models similar in size and functionality can differ markedly in weight.