beben bluetooth 5.0 true wireless earbuds with charging case for iphone android, 5h continuous 25h cyclic playtime waterproof stereo headphones with mic, in-ear earphones headset for sport beben <b>advantages of beben t19 wireless earbuds:</b><br>1. beben offers a pair of high-fidelity bluetooth wireless earphones with up to 30 hours of battery life.<br>2. 2.you can easily switch between single and binaural mode and enjoy one-click manipulation.<br>3.suitable size, easy to carry, can use in anytime anywhere, achieve what you desired.<br><br><b>functions of mutifuction button (mfb):</b><br>volume-: click l control button 3 times<br>volume+: click r control button 3 times<br>previous song:long press mfb of left earbud<br>next song:long press mfb of right earbud<br>play/ pause: one press mfb of one earbud<br>pick up/ hang up phone call: one press mfb once of one earbud<br>decline incoming call: long press mfb for 2s of one earbud<br><br><b>reset (if 2 earbuds can't pair with each other or can’t connect with your device):</b><br>1. delete the “t19” earbuds device from bluetooth list on your phone.<br>2. take out two earbuds from the charging case and turn them off. (follow turn off - method 2 on user manual)<br>3. long press the mfb of 2 earbuds for 15s until there are orange and white lights flashing for 1s then turn off automatically. <br>4. turn on 2 earbuds (follow turn on - method 2 on user manual) after 2 seconds, double press mfb of both earbuds and 2 earbuds will connect to each other. after connected successfully, both led lights will have orange and white lights flicker alternately.<br>5. after reset, please connect the earbuds to your device according to connect to bt device methods on user manual.<br><br><b>note:</b><br>1. if the earbuds are not in the charging case or haven’t been put back into the charging case, the turn-on of the two earbuds is independent. you need to turn on both earbuds.<br>2. if the earbuds can not pair with your bluetooth device or can not pair with each other, please try to reset them according to user manual or please feel free to contact us.