Make nearly any speaker setup wireless with the Bose SoundTouch Wireless Link Adapter. It is equipped with Bluetooth connectivity to allow streaming from your compatible mobile device and Wi-Fi to access Internet-based content. Its 1/8" audio output will allow you to connect it to external speakers or a stereo system with the included 1/8" to RCA adapter cable. The 1/8" audio output also functions as a mini-optical output for connecting compatible digital equipment.