Baseus Flash Charge technology allows you to charge the headphones for 10 minutes and play music for 2 hours. 13mm Driver: 13mm full-range PU composite driver and titanium diaphragm provide balanced treble and crystal clear sound quality. Quick Response Auto Connect: Open the cover and put it down to listen to music instantly thanks to Auto Connect. 25 Hours Long Battery Life: The energy-saving wireless chip provides 25 hours of long battery life. IP64 Rating: Splash-proof waterproof design allows you to wear it in the rain and do sports freely Locating the speaker via the Baseus app