Advanced circuitry design, built-in speakers protection circuit, solid aluminum chassis for long time use, small size, good looks, simple functionality, and excellent sound quality; Best for bookshelf/computer/desktop/speakers in your room, connect to your Phone/MP3 player/DC/TV/Echo Dot as input, 50W X 2(4 ohms, 20 Hz - 20 kHz, 0.04% THD) can drive 2Ohm - 8Ohm speakers; Home Hi-Fi integrated amplifier, Exclusively designed for the customers who pursue HiFi sound; Ship with power adapter and power cord, you can use directly; Simple compact design but practical and powerful, Adopt TI TPA3116D2 chip to get clear and clarity sound, no audible noise, dead silent when nothing is playing through it; Aluminum shell and Aluminum knob to sure high quality come to a 19V power supply that can fit with the amplifier well. 24-month warranty, you can return the item if you have any problems;