Super easy paring just take Bluetooth earbuds out and put them on, turn Bluetooth on and choose “S3”, then it’s connected and done! 【Tw's & Bluetooth 5. 0& built-in microphone wireless stereo& latest Bluetooth 5. 0 bring you 3D hi-fi stereo sound and call with faster, steadier and farther transmission at a much lower power cost. 【Handy charging & longer playtime with a charging case supporting wireless headphones 3 times fully charged, 5 hours per charge, 15 hours in total. 【Comfortable design our wireless earbuds are designed to fit in your ear comfortably and without dropping, and have 3-size ear tips for your best wearing! 【Widely compatible completely compatible with all the ISO and Android System, absolutely an ideal pair of your smart phones and pads! Enjoy sweet moments with your love together!