Kinivo devices are designed to be versatile and often can be used with multiple devices, depending on the specific product and its features. For example, many Kinivo Bluetooth audio devices can pair with various Bluetooth-enabled devices, including smartphones, laptops, tablets, and more, allowing users to switch between devices seamlessly. In the case of Kinivo HDMI switchers, they are typically capable of connecting multiple HDMI source devices to a single output display, which makes it easy to switch between devices like gaming consoles, DVD players, or streaming devices without the need to frequently plug and unplug cables. However, it is essential to refer to the user manual or specifications for each particular Kinivo product to understand its capabilities fully, such as how many devices it can support simultaneously. For additional technical details, users might find it helpful to check the current product pages on the Kinivo website, where the features and compatibility information are often elaborated upon.