Long Lasting Battery: with a 12-hour battery life while using Bluetooth the Shockwave 200 is built to power the whole party! Enjoy nonstop music while connected to Bluetooth for up to 12 hours or plug it into any power source and enjoy unlimited tunes! Party Sync: With Party Sync the Altec Lansing Shockwave can pair with 50 other Party Sync enabled Altec Lansing speakers to create bass boosted stereo quality music that will make you feel like you