The Samson Expedition XP312w Rechargeable Portable PA answers the call of those who need great-sounding mobile audio. With 300 watts of power, 12 hours of battery life, a 4-channel mixer and Bluetooth, the XP312w delivers huge sound to musicians, DJs or those enjoying a variety of outdoor events. It also includes a frequency-agile wireless microphone for cord-free performance. Band K: 470 to 494 MHz