Herdio Bluetooth Wall Amplifier 4 Channels Volume Control Wall Plate USB/MIC/AUX(3.5mm) Inputs Connect 4 Speakers with 12V 3A Power Supply,HWA-16BT-4CH

♥Easy to install: Install the wall amplifier system on any wall in the home or office to unlock versatile sound configuration that is easily accessible. 16BT-4CH offers flexibility, power, and control all in one small and discrete package ♥Built-in Bluetooth allows you to stream audio wirelessly to a connected speaker system; Countroller receivers&Directs Bluetooth wireless audio works with all of your favorite device. Wireless range:30' Feet(10 Meters). ♥Connecting Audio: Line level audio is typically supplied via the front 3.5mm input jack pigtail leads located on the rear of the amplifier receiver wall plate. ♥Updated features: Microphone paging and speakers control made easy. USB port allow you easily access to music stored on a flash drive. Aux input port plug&play smartphones and other music device; Dual Independent 4 Channels: connect up to 4 speakers. ♥What is in the package:1x in-wall audio Bluetooth receiver wall plate,1XAC adapter,2Xscrews. Note: make sure The unit is properly connected to external speakers;make sure the unit is properly connected to a power source.