Manuals+ Q&A

tekkiwear RU-638 2 in 1 Beauty Instrument Instructions — questions & answers

Read product questions and troubleshooting answers linked to tekkiwear RU-638 2 in 1 Beauty Instrument Instructions.

Open manual Ask a question

Browse topics

Answered questions

How do I switch between 1MHz and 3MHz frequencies on the RU-638 beauty instrument?

2026-05-12 1 answer

Based on the RU-638 manual, the device operates within a high-frequency vibration range of 1MHz to 3MHz. However, the manual does not specify a…

Related manual Product Q&A