SAST 500W High-Power Bluetooth Constant Voltage Amplifier, Public Address System, Ceiling Speaker, Wall-Mounted Speaker Column, Home Theater Combination ST-619

USB and SD card direct playback supporting MP3 audio format

Bluetooth wireless connection for stable music streaming from mobile phones, computers, tablets, and other devices

AUX1 and AUX2 inputs

Independent volume adjustment for each of the six zones

Bass and treble tone control for personalized sound customization

Microphone volume control

Six-zone on/off switch for flexible zone management

FM radio reception (subject to actual reception conditions)

LED display screen

Overload protection with automatic alarm and gain indicator light

Five-star protection system including voltage protection, overload protection, overcurrent protection, short circuit protection, and self-protection

Supports wired and wireless microphones (wireless microphones sold separately)

Compatible with multiple audio sources and speaker types including wall-mounted speakers, ceiling speakers, waterproof column speakers, TV, DVD players, and computers

Six independent zone volume knobs

Power switch

Bass and treble adjustment knobs

Microphone inputs and line inputs clearly labeled

SD card slot

Bluetooth wireless connection

USB port

SD card slot

Multiple audio input and output interfaces

Six-zone speaker output terminals

SAST Amplifier Unit x1

Audio Cable x1

User Manual x1

Warranty Card x1

Conference rooms

Lecture halls

Corridors

Offices

Lounges

Studies

Mobile phone can be used as a remote control via Bluetooth connection.