NINTAUS PA52 Constant Voltage and Constant Resistance High Power Bluetooth Two-Zone Amplifier for Public Broadcasting Ceiling Speakers Home 140W Amplifier Column Speaker Wall-Mounted Speaker for Shops

USB reading and direct USB input

Audio input and output interfaces

Microphone inputs (supports dual microphone input with strong feedback suppression)

CARD slot for additional media input

Main volume control

Separate volume controls for Zone 1 and Zone 2

Bass and treble tone adjustment

Power switch

Multi-source audio input including Bluetooth, USB, audio input, and microphone

Two independent zones with mute function for either zone

Supports multiple microphone use simultaneously without interference (ideal for karaoke, broadcasting, hosting)

Compatible with a wide range of audio devices such as smartphones, DVD players, TVs, computers

Suitable for factory areas, residential homes, villas

Can be paired with up to two 50W waterproof speakers or up to six 15W wall-mounted speakers

Multi-functional background music system with comprehensive features

Two-zone wiring diagram included

Supports traffic input and warning signals

Due to measurement angle differences, actual product dimensions may vary slightly

Designed for public address and multi-zone audio applications