Behringer’s new iP40PRO is an all-in-one portable PA system with full Bluetooth connectivity. The iP40PRO can handle gatherings of up to 250 people and features a 40-watt, Class-D amplifier; a powerful 8” woofer and high-resolution tweeter housed in a rugged self-contained package, integrated wheels and a convenient retractable luggage-style handle for ease of transport. To further enhance portability, a rechargeable internal battery provides up to 12 hours of operation.
A so-called “Planet Earth” switching power supply (100 – 240 V) makes it worldwide capable. It also offers noise-free audio with superior transient response and lower power consumption, according to Behringer. Two microphone inputs with mic preamps and individual volume controls are provided, as well as an auxiliary input for connecting external audio players.
Here are all the specs: http://www.behringer.com/EN/Products/iP40PRO.aspx