Why won't my IQ-235TWS earbuds light up or turn on?
While your comment refers to the IQ-235TWS, the troubleshooting steps for Supersonic TWS earbuds are generally similar to the IQ-140TWS model described in this…
Manuals+ Q&A
Supersonic IQ-140TWS True Wireless Earbuds with Charging Case User Manual — questions & answers
Read product questions and troubleshooting answers linked to Supersonic IQ-140TWS True Wireless Earbuds with Charging Case User Manual.