i took a chance at the lenovo gm02 pros from the bundle section for around $3.50 and...wow, impressive.
+very even and balanced sound
+no dropout
+game mode goes for just less than 5 hours
+lightweight
-mic is a joke
-case and buds are kind of big. no level indicator - it's just either has charge (blue) or doesn't have charge (red)
-lacks bass: there's just enough to fill the sound out but it's not going to be there if you like your music to sound colorful
-so many pointless lights

might buy another pair if it ever gets that cheap again