This part is a kind of semiconductor called UTC2822H.

Function of this product has DUAL LOW VOLTAGE POWER AMPLIFIER.

Manufacturers : YOUWANG ELECTRONICS

Image and pinout :

Some of the text within the PDF file :

The UTC2822H is a monolithic integrated audio amplifier in a 8-pin DIP and SOP package. It is designed for portable cassette players and radios.
FEATURES

* Wide operating supply voltage:Vcc=1.8V- 6V
* Low crossover distortion
* Low quiescent circuit current
* bridge/stereo configuration [ ... ]

UTC2822H PDF Datasheet Download