<p>Upgrade Generation<br> Upgraded with the most advanced Bluetooth technology，Sontinh Coolbuds2 support seamless switching between two sides for unilateral and bilateral use, freely switch on the call or music playing without any streaming break.<br> <br> Design to be different<br> Earbuds are not only for listening to music, but also fashion accessory. Inspired by Aurora, we use customized non-conductive vacuum plating technology to make the surface of earbuds to be shiny and dreamy.<br> <br> Compact, yet powerful<br> With an incredibly compact charging case that provides a full charge of up to 20 hours(single charge will support 4 hours,the case support 4 times charge), Sontinh CoolBuds were designed to go where you go and are always ready to go the distance!<br> <br> <br> Stay conntected<br> Enjoy a high-quality, uninterrupted true wireless experience no matter where you go with your Sontinh CoolBuds thanks to the built-in, easy-to-pair Bluetooth 5.0 technology, optimized connectivity performance guarantee 66ft range never loss which is twice longer than average.<br> <br> Crystal clear sound<br> Designed to impress even the most discerning audiophile, Sontinh CoolBuds provide the powerful bass, crystal clear vocals, and distortion-free sound you expect from professional grade acoustics.<br> <br> Smart touch<br> One step paring: take the earbuds out of the case and connect via your device's Bluetooth menu.<br> Paly/ pause music: double tap the touch panel of earbuds.<br> Answer phone call: double tap the touch panel of earbuds.<br> <br> <br> Water-resistant<br> The Bluetooth earpieces are IPX5 sweatproof, splash proof, rainproof, perfect for daily use like walking, biking, travelling, running, jogging, workout etc.<br> <br> <br> <br> Package Content<br> 1 x Soutinh CoolBuds Bluetooth Earphones<br> 1 x Charging Case<br> 3 x Interchangeable Ear Tips<br> 1 x USB Charging Cable<br> 1 x User Manual<br> <br> 　</p>