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Hidden Features of Mini Key Fobs Key fobs have been a long way since their early days as decorative trinkets. They now have the ability to do everything from locking and unlocking doors to remotely starting the car. Some even have extra features that the owners may not know about. If your car's key fob starts getting a little agitated, it's time to replace its battery. The good part is that the task is relatively easy. Switchblade Keyless Entry Fobs Key fobs do much more than unlock and start the car. TheKeyLab 's also a theft deterrent and security device. Modern day key fobs that are high-tech are more efficient, practical and secure than they have ever been. But their high cost can make them costly to replace if you lose or break one. A basic key fob may be a couple of dollars to purchase however, having it programmed can set you back more than $200. Those costs are even higher when you have a luxury vehicle or one with special features. Some basic warranties and insurance coverage programs might provide the replacement fob, however the majority of people will have to shell out hundreds of dollars if they need to get theirs fixed. Certain newer cars come with a fob that doubles as a smart key. They can lock, unlock, or arm an alarm with the pressing of one button. They can also summon your car, similar to Tesla's summon function. However, they must be within range of the vehicle in order to function. Fobs like this contain a metal key that folds into the fob in the same way as a switchblade knife. A spring keeps the key tucked inside when not in use and it is possible to pop it out at the push of a button for access to the vehicle. A switchblade fob is typically around the same price as a standard key fob which comes with a metal key. Keyless Entry Fobs that have a physical key hidden Many modern key fobs offer more features than just unlocking and starting the car. Modern models can do anything from lowering windows to summon the vehicle and even automate parking. While some of these nifty features may not be helpful on your daily commute, they can be incredibly beneficial in certain circumstances. Some key fobs have an actual key hidden within them, usually in the form of a flat, metal key blade. Keys can be placed inside a small compartment of the key fob or removed by pressing the button located on the base. If you're in a hurry to get to your car and you've forgotten your keys or you'd like to be capable of starting your BMW by pushing the button, having an extra key can help. The battery inside the key fob is most likely to go out at some point, and that can be a huge discomfort for neck. The key fob battery can be easily and cheaply replaced. You can get a replacement from your dealer, a third-party vendor such as BimmerTech, or a hardware shop or big-box retailer. Some BMW key fobs include a Display Key, which can be used to enhance the number of functions that can be driven using the key. You can check whether the doors are locked, set a timer when the AC should be on, and even view the level of your fuel at up to 1000 feet. Keyless Entry Fobs with Side Mirrors Folding Key fobs today are loaded with more advanced electronics than ever before, and this tiny plastic device does much more than lock and unlock the doors and start the car remotely. It can also emit chirping sounds to help you locate your car in a parking lot or serve as an audio remote to control the radio stations in your car. One of the most useful hidden features is found on a few newer models that allow users to shut down all windows at once by pressing a button on your key fob. This is ideal for hot summer days when your air conditioner just cannot keep up. The sequence of buttons that activate the feature isn't always labeled, so you may have to experiment with different combinations until you come across one that works for your vehicle. If you like to keep your car in a tiny space, the key fobs that are found on modern Chevrolet or GMC vehicles will automatically fold the side mirrors after you lock it. To enable this feature, simply press the “lock button” on the fob and hold it for 2 seconds. Do you share your car with the gentle giant or someone who isn't as long of legs as you? You might want to think about a car that has a key fob that allows you to set an automatic seat memory. Certain models, such as GMC's GMC, allow you to create an individual seat preference and then automatically remember it each when you start the car. Keyless Entry Fobs that have Bluetooth Connection. Bluetooth Connection With the increasing popularity of smart keys and smartphones for car access criminals have gained an opportunity to steal vehicles. These systems rely on wireless protocols that are prone to being hijacked. Criminals can spoof signals from your phone or key fob to unlock and start the car. A key fob, small, programmable hardware token, provides one-factor authentication on the device, allowing access to physical objects such as vehicles, computers and restricted areas, or mobile device. The fob transmits wireless signals to a device that recognizes the data and commands and performs predetermined functions like locking or unlocking. In a lot of cases the key fob can also be used as a security token. It supports two-factor and multiple-factor authentication (2FA and MFA) to provide added security. This is usually accomplished by adding biometric verification to the equation. For example, a fingerprint or iris, or even a voiceprint can be used. Kwikset Kevo proximity keyless locks allow users to unlock their doors using smartphones or a Bluetooth-enabled fob. This means that there is no need for traditional keys. These systems are popular with business owners as they make it simple for administrators to manage access to users and onboard new employees without having to change locks or distribute keys cards.