Mission design, portable, up to 150' range (900 MHz), push button auto lock tuning, 2 way acoustic design, bass boost, compatible with iPad, iPhone, and iPod, works with Android, weather resistant, dual power: AC (adapter included) or 6 AA batteries, includes speaker, transmitter, 2 AC power adapters, and a mini jack to stereo lead adapter, add multiple units, 3 selectable broadcast frequencies, with Automatic Level Control (ALC).Features: It'...