Review on 🎵 Pyle Bluetooth Mini Blue Series Home Audio Amplifier - Compact Desktop Home Theater-Stereo Amplifier Receiver with USB Charge Port - Pager & Mixer Karaoke Modes - Mic Input (40 Watt x 2) - PTA22BT: The Perfect Amplifier for Home Audio and Karaoke Entertainment by Izzyswave Singh

For controlling patio speakers. It worked great for 4 months and then it started buzzing really loud (my speakers exploded!). I'm EE and I've worked on this type of product before. It looks like the power supply is defective - probably the filter covers. I checked the warranty and saw that I have to prepay it nationwide and ship it insured, and I have to include $15 for return shipping. And that's assuming Pyle agrees it's her problem. Then I expected another 4 months of use. Revain offered me a refund - minus an undisclosed restocking fee.