B&O list price : 999 euro. 

Look in the description for connection options.

BeoSound Core MK2 is a small but powerful connectivity hub that turns your speakers into a future-proof wireless speaker system with Multiroom features and lossless high-resolution audio streaming.

Play directly from your mobile device or favorite music app via Chromecast built-in, Apple AirPlay 2, Bluetooth or your own digital music collection via DLNA.

This is the MK2 version where you can optionally connect an IR eye to perform functions with the Beo4 – BeoRemoteOne

With the BeoSound core you have 2 options:

1: You connect the speakers directly to the Core then you have internet radio – Spotify – Deezer via Bluetooth-wifi streaming.

2: You order the AUX cable in the options and you connect the Core to the AUX input of your BeoSound or BeoCenter.

So you have the best of 2 worlds, CD and analog radio from the BeoSound or BeoCenter AND internet radio – Spotify – Deezer via Bluetooth WiFi streaming from the BeoSound Core.

You can connect an external device to it via the optical LINE-IN.

Option :

RJ45 to 5-DIN 1,8m for the Core to be connected to the AUX in of a BeoSound: 25 euros

Powerlink splitter RJ45 to 2x female DIN 0,15m (Core has only 1 PL output) : 25 euros