Bose SoundTouch Wireless Link Adapter
Works with Alexa for voice control (Alexa device sold separately).
Connects to any existing stereo or home theatre system to stream music wirelessly
Uses your home Wi-Fi network or Bluetooth devices for easy access to Spotify, Pandora and Amazon music
Easily expands with other Sound Touch speakers to stream music throughout your home, Up to 30'' Range
Easy setup, and includes cables for 3.5mm mini-stereo, RCA or digital optical interfaces
Enjoy hands-free voice access to your music on SoundTouch speakers using any Alexa-enabled device like the Amazon Echo Dot. The Bose SoundTouch Control Skill is compatible with all Bose SoundTouch speakers
The last three photos are the product I have - unused.
