Turn your existing speakers into smart speakers with the SoundTouch SA-5 Amplifier from Bose This amplifier can deliver up to 100W per channel and can accommodate up to 4 speakers. The SoundTouch SA-5 amplifier features Wi-Fi and Ethernet interfaces for high-speed Internet connectivity. Using the free SoundTouch app for Android, iOS, and Kindle Fire devices, you can wirelessly stream locally stored content and Internet radio services such as Pandora, Deezer, iHeartRadio, Spotify, iTunes, and Internet radio. Integrated Bluetooth connectivity allows you to pair and wirelessly stream music from similarly equipped devices. 3.5mm and dual stereo inputs are also on-board for interfacing wired music sources.