Review on Nobsound Mini Bluetooth 5.0 Power Amplifier - Stereo Hi-Fi Digital Amp 2.0 Channel 50W×2 with AUX/USB/Bluetooth Input - Wireless Audio Receiver - PC Sound Card incl. Power Supply (Silver) by Jeff Langford

This little box is great! I've paired it with Yamaha NS-AW190BL indoor and outdoor speakers and while I'm sure this amp won't push them to the max, it's certainly powerful enough to produce a clear sound. I set up an outdoor theater in my backyard and hooked it up to my projector so I could take it inside when I wasn't using it. The problem is that for some reason this device introduces a delay of almost a second. When we watch a movie, the dialogue looks synchronized because the audio appears after they've already said the words. Of course, if I only listen to music, that's not a problem, but it's still annoying. Without the delay, that would definitely be five stars. Everything about the physical design is perfect. The Bluetooth connection was flawless, the range was about average for a Bluetooth device, around 20-30 feet.