All-in-one portable PA system with full Bluetooth connectivity. With its 40-Watt amplifier and premium 2-way speaker system,the iP40 provides superb sound—and the rechargeable battery lasts up to 12 hours. Add one or two of our ULM digital microphones, and you’ve got a supremely easy-to-use wireless,go-anywhere sound system on wheels. Built-in 2-channel mixers with the same ultra-low noise,high-headroom mic preamps that have made BEHRINGER mixers legendary.Also included is 2-band equalizer,plus Bluetooth for streaming audio directly from your iOS device, and our proprietary ULM wireless technology.Sold separately, BEHRINGER ULM Series digital mics integrate seamlessly to expand your MPA40BT/MPA40BT PRO system to handle virtually any live sound application.