iVid BT-500 NFC Enhanced Bass Powerful Bluetooth 4.0 Wireless Speaker with Wi-Fi Streaming Apps, Built in Mic, Touch Panel, 12 Hour Playtime Powerful sound quality with dual 10W drivers, 2x tweeters, Class D amplifier, and specialized passive bass radiator. Rechargeable battery that allows play up to 12 hours. Connects directly to your home's Wi-Fi network for Internet radio, and your favorite online music services like Spotify, Pandora, Tuneln and iHeartradio. With the iVid App, you can control your speaker playback from your smart phone or tablet With the Multi-Room function, you can play the same or different songs in many other speakers. You can combine the power multiple speakers. Expand your wireless music system room by room. Add more iVid BT-500 to your house and enjoy true multi room music. Connect any source of music with the line in input. One-touch access to your music with 6 personalized presets. You can personalize 6 presets of your favorite music, radio station, playlists, artists, albums or songs from your music library. With the Speaker Phone function, you can make and receive hands free calls!!