Product Name:Herdio 5.25 Inch Ceiling Speakers 600W 2-Way Flush Mount Compatable with Bluetooth Wall Mount Amplifier Receiver Suitable for Home Theater Bathroom Living Room Kitchen Office(4 Speakers) Product Description: The Bluetooth Ceiling Speakers with Amplifier Receiver 5.25'' stereo indoor speakers can be used for in-wall and in-ceiling applications. Herdio wall speakers delivers Stereo sound to any room in your home or office without cluttering floor space. Easy to Install: Install this home audio system on any wall in the home or office .The wall mount amplifier has a universal standard wall plate size .Connected with our ceiling speakers and let it give you versatile sound experience that is easily accessible. Built-in Bluetooth-compatible for Wireless Music Streaming Enjoy wireless music streaming thanks to built-in Bluetooth technology. Works with all of your favorite Bluetooth devices (like iPhones, Androids, Smartphones, iPads, Tablets, and more). Instantly stream your favorite tracks and internet radio services like Pandora or Spotify. It's easy to setup and control! Gain access to your music library and play exactly what you want to hear. 600-WATT PEAK POWER: 300 Watts Total Power Output (150 Watts Each Speaker) Speakers Specifilication: Power Output: 600Watt MAX (2 Pair) (150 Watts Each Speaker) Sensitivity: 89dB Impedance: 8Ohm Frequency Response: 60-20KHZ VOL UME/ON/OFF: Master Volume Control with Power ON/OFF MIC IN: Microphone Input Connector Jack AUX IN: (3.5mm)Audio Input Jack USB PORT: The audio controller can as a charging port for your devices