This selection features a variety of electronic devices designed to connect your hifi speaker system wirelessly. This includes wireless streaming amplifiers and receivers that can send a strengthened audio signal directly to your speakers without the need for cables. Other wireless sources include audio transmitters, media players, and preamplifiers. These devices are highly suitable for outdoor or multizonal systems that utilise in-wall or in-ceiling speakers. As it can be difficult to run cables long distances or inside the walls of a room, a wireless transmitting device can make the system run smoothly. They are not recommended for professional home cinema setups or systems with high audio quality requirements, as they do not produce the same results that some wired devices are capable of.