Review on Wireless Audio Adapter for TV/Home Stereo System - Bluetooth 5.0 Transmitter and Receiver with Digital Optical & 3.5mm - Low Latency (Black) by William Turner

I went to the charging instructions which said to charge the item until the blue light came on. The blue light never came on. After 12 hours I assumed the device was fully charged, although no blue light was visible. Nowhere in the instructions does it say I can't leave the charging cable plugged in so the device keeps charging while in use. The device worked for 12 separate long-term sessions, but after those sessions it was subsequently connected and then disconnected again 5 minutes after starting to use it. I am returning the item and will research Revain to purchase a better quality unit.