The Soundcast OutCast™ has an internal AC power supply that can recharge the NiMH battery pack and operate the OutCast™ at the same time with one charge lasting up to 10 hours. All OutCasts™ have controls for volume, on/off, and mood lighting. There is also an input jack for direct connection of an MP3 player, which should be very useful during social gatherings when guests might wish to play music from their personal players.