Review on 🔌 In-Wall Bluetooth Audio Receiver Wall Plate with BT 4.2 Wireless Adapter, 30W Stereo Amplifier, aptX Audio, Volume Control, 3.5mm Headphone AUX Input - Ideal for Sound Speaker Systems and Home Theater Integration by Rui Hanson

I was looking for a simple amp that would fit in a standard wallbox and fit the bill perfectly. A small button turns the amp on and off. There are no adjustments for bass, treble or balance. A separate quad connector is used to connect the speaker wires to the main amplifier. This is a good feature to protect the amp from damage. The Bluetooth range is very good. I installed an amplifier in one room and I can use my smartphone downstairs. Claimed Bluetooth range is 50 feet in open space. Inside, he can go through two walls and about 20-30 feet. My amp is connected to four ceiling speakers in a 20' x 30' room. My TV is connected to an amplifier and ceiling speakers via Bluetooth. This is a beautiful setting. Half the volume provides more than enough volume in the room. The wires connecting the power supply to the board are somewhat fragile, so care must be taken not to break the wires. The power supply is a bit strange. It must be plugged into the nearest outlet. To keep everything in the wall, I bought a separate 12V power supply that plugs directly into 120V AC instead of the nearest outlet. All in all a very good amp that is suitable for my purposes. I installed it on December 17, 2020. If it holds up well to everyday use I'll buy another one for my garage.