Fosi Audio BT20A Pro Bluetooth 5.0 Amplifier 300W x2 Wireless Amp TPA3255 2 Channel Mini Class D Integrated Home Audio Outdoor Stereo Receiver with Bass Treble Control for Passive Speakers

300 Watts x 2 Power Output: The TI TPA3255 chip amplifier has a feedback design and high-speed gate driver error connection for efficient and quality audio performance, with a low idle loss of 	High-Efficiency: The chip amplifier has replaceable Op-Amps for a custom approach when compared to the BT20A amplifier. Further, you can swap the 2 plug-in NE5532 Op-Amps for LME49720HA, MUSES02, OPA2604AP, OPA2134PA, LM4562, or NJM4556AD Op-Amps to achieve distinct sound qualities. It boasts an SNR≥108dB and THD≤0.005%	Bluetooth 5.0 Connectivity: The Bluetooth pair can be removed by pressing and holding the volume control for 5 seconds, and it also has a memory function for easy pairing and an alert tone for convenience	Custom Sound with Bass and Treble Controls: The BT20A Pro home audio amplifier has a sound control design so that you can experience sound without effects by setting treble and bass effects to the middle point	Package Contents: The package contains a BT20A Pro power amplifier, a Bluetooth antenna, a 32V/5A power adapter, an AC cord, and a user manual