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PyleHome Model : PT730UPA Amplifier with Microphone Talk-Over 375 Watt PA Amplifier with 5 Mic Inputs, Mic Talk-Over Function, USB & Micro SD Card Readers, AUX Input & 4 Ohm, 8 Ohm, 70V, 100V Outputs Mic Talk-Over: Allows you to Talk Over Music, Karaoke StyleAutomatic Talk-Over Function: Quiets Music When Speaking into MicUSB Flash & SD Memory Card ReadersDigital LCD Display with ID3 TAG Information AUX Input, 3.5mm Connector for iPod/MP3 PlayersPerfect for Office Paging, Public Gatherings, Live DJ Provides Convenient Music and Voice System Control(5) Microphone Inputs & Switchable 3-Channel Stereo AUX-IN Front Panel Control Center for Bass, Mid, Treble, & Tone AdjustmentsAnnouncement Chime and Siren Functions Output Level Indicator4 Ohm, 8 Ohm, 70 Volt and 100 Volt Speaker Outputs with Zone SelectorMaximum Power Output: 375 Watt150 Watt RMS Output at 8ohmPower Supply: 115V/230V Switch The Pyle PT730U public address system is perfect for office paging systems, business background music, public gatherings, live DJ parties and any where you need music and microphone control. The microphone talkover function allows you speak over playing music. Amplifier has USB flash drive and micro SD memory card readers to quickly and easily play MP3 files. Additional features include (5) microphone inputs, switchable 3-channel stereo AUX-in, automatic talk-over function, and fully customizable listening experience with the front panel located control center for bass, mid, treble & tone adjustments.