Mass Fidelity Relay Portable Wireless Hi-Fi Bluetooth Receiver DAC in Silver Freedom to Groove  Cut the wires and feel free to move. Control your music while you move around your home. Easy Set up  No-wireless router network. Turbo Pairing saves time to pair/repair with only 1 minute of set up. Unlimited Music and Control  Choose from any digital music source accessible from your smart phone. From Pandora to Spotify to iTunes, Relay plays them all. Portable and Travel Friendly  4.6 inches length x 4 inches width x 1.4 inches height Free Shipping in the US and Canada