Binaural call: 3.5~4.5 hours. Open earphones, sports earbuds, sports earphones, open earbuds, wireless earbuds mini cycling driving, open earbuds, running earbuds. Sports earplugs, sports wireless earplugs, short open earplugs, sports earplugs, wireless sports earphones, cycling earplugs, wireless cycling earplugs, cycling earphones, cycling earphones Bluetooth.
eBay