ROCKI PLAY WiFi Music Plug-in for all Sound Systems with 3.5mm or RCA Line-in (Deep PURPLE) ROCKI turns your stereo hifi or home theater into a wireless multi-room music system - no need to replace perfectly good speakers! Use the WiFi network to play your own music from your phone, tablet, computer or any music service that is integrated into the ROCKI app by connecting your ROCKI PLAY to any speaker in your home via 3.5mm or standard RCA audio connectors. Excellent wireless sound -- ROCKI links to your personal device via WiFi connection enabling ROCKI to transmit high quality audio, including lossless formats like FLAC, at a greater distance. Free ROCKI app allows single or multi users to conveniently stream their music. The ROCKI app is available for Android and Apple (IOS) products and is compatible with a multitude of sound formats: MP3, FLAC, OGG, MP4 and others. ROCKI PLAY is available in 7 stylish colors on Amazon. ROCKI PLAY connects to your speakers with an audio cable or RCA audio cable and is powered by a USB charging cable -- all of which are included with the ROCKI PLAY.