Your Music Retro Style - This portable Bluetooth comes with a nostalgic retro design reminiscent of the '80s and '90s, complete with a large round speaker, antenna, and squared handle.premium Sound - Equipped with a 5W amplifier and 2"" full range woofer, this mini lets you enjoy high quality audio. It also has a rubberized silicone body for grip and durability.join The Party - This Bluetooth speaker with Fm lets you play music from your phone, Usb drives, and Sd cards. You can also tune in to your favorite Fm stations.wavesync Doubles The Fun - The WaveSync technology lets you connect 2 Retrobox Mini Rtx-10 speakers of the same model to each other.