This manual is about the BK-919 user manual, which includes power supply, precautions, functional component names, battery installation, operation instructions, safe charging, playback, pause, stop, repeat time switching, instant repeat speed function, one breath repeat, instant follow-up comparison speed, manual repeat, automatic repeat, computer recording, manual follow-up comparison, automatic follow-up, automatic follow-up comparison, follow-up repeat, vowel retention, consonant update, section repeat (repeat extraction), fast rewind, tape recording, time setting, troubleshooting, technical specifications, after-sales service, etc.
