·Tiny yet powerful speaker drivers for deep bass

· Long 12 hours play time

· 15 mins fast charging for 2 hours play

· IPX 4 sweat and splash proof

· Secure comfort fit with flexible ear hook and adjustable cable

· Oval acoustic tube for comfortable, ergonomic fit

· Clear calls echo cancellation

· Durability proven. Pulled, bent, stressed and stretched for over 150 hours test.