EASY PAIRING-pick out the TWS earbuds form the charging case and they will turn into pairing mode automatically. Put them in your ears and they connect instantly after one-tap setup. Enjoy complete freedom of wireless support siri +volume control
CLEAR SOUND QUALITY -- Featuring Bluetooth 5.0 technology and built-in high-resolution microphone, S991 provide rich, high-quality audio and helps you be heard clearly- make calls or talk to Siri
COMFORTABLE WEARING-Ergonomically designed, super lightweight(only 0.16 oz), and different size( S,M,L) ear caps to fit your ears make sure comfortable wearing.Double ear hook design and sweatproof make it perfect for sports,jogging,running,biking,hiking, gym exercise.
CHARGE ON THE GO -- Esonstyle S991 wireless earbuds delivers 3 hours of listening time on one charge. And they're made to keep up with you, thanks to a charging case that holds 4-5 times additional charges for more than 15 hours of listening time
SWITCHABLE BETWEEN SINGLE AND TWIN MODE -- Can be used as one single earbud for keeping an ear open to the traffics, or leave another earbud for charging; or used as a pair to enjoy stereo music or to isolate ambient noises