TP-Link HA100 Bluetooth Music Receiver.
Key Features:

• Bluetooth 4.1: Technology increases the speed and reliability of data transfer between devices to Hi-Fi or speaker system wirelessly.
• Long-range wireless: Relax in your favorite chair and control your music with a reliable connection of up to 20 meters (66 feet) away from your speakers.
• Connect up to 8 different devices: The receiver will store information for up to 8 different devices, making it easy for you to connect your friends’ or family members’ devices and enjoy their music.
• Modern and Compact Design: HA100 is a complement to traditional home stereo systems. This portable form will not look out of place, even placed it next to or on top of the most modern stereos or speakers.