The device is a stereo preamplifier implemented using a TL082 operational amplifier (also marked as B082), operating with a single-supply power source. It is designed to amplify low-level audio signals before feeding them to a power amplifier or another audio module.
The power supply operates with DC voltage in the range of 8 to 15 V, making it suitable for both stationary and automotive audio applications.
The circuit is suitable for standard low-level audio signal sources.
The printed circuit board has compact dimensions of 39 x 34 mm.

Technical Specifications:
Type: stereo preamplifier
Operational amplifier: TL082 (B082).
Channels: 2 (stereo).
Supply voltage: 8-15 V DC (single supply).
PCB dimensions: 39 x 34 mm.

This product is a DIY assembly kit.