This document describes a man's life in a tall building in Moscow. He enjoys the quietness and the view of the park from his window.
This manual explains how to operate the BBK repeater, including control functions such as volume adjustment, indicator lights, and headphone connections. It also details the device's technical specifications such as headphone impedance and rated power.
Additional sections cover common troubleshooting steps for issues like unclear sound quality, indicator light signals, and how to properly clean or service the unit. Safety and maintenance guidelines are included to ensure reliable long‑term use. This manual is written in Chinese.
Turn the volume control knob as shown in the manual to increase or decrease the sound level.
The indicator light shows the device status; refer to the troubleshooting section if it blinks or stays off.