Closer look at USB powered LED string fairy lights with a remote
This is 5m (~16.5 ft) , 50 LED string. There are also 1m and 10m versions with white LEDs
If you're interested only in functionality, here are the chapters 😊
00:00 Introduction
01:59 Functions
04:40 Inside the remote
06:28 Inside the USB module
09:01 Frequency and LEDs on speaker
10:00 How does it work?
15:16 Current draw