The KEF LS50 Wireless allows you to listen wirelessly to high-quality sound reproduction. You can connect these speakers via WiFi or Bluetooth with your smartphone, tablet, or laptop. You can listen to hi-res audio via WiFi, while Bluetooth apX lets you enjoy CD quality. The speakers have an integrated amplifier, so you don't have to connect them to peripherals. You do need to connect the speaker to the power grid. There's no need for a receiver or preamplifier. Don't have any wireless devices? In that case, you can easily connect connect a TV, computer, media player, or console to the analogue or digital outputs. Whatever you're listening to, the 2-way system and Uni-Q technology provide a sonic image that's wide and clear.