Type-C Charge with LED Display Just use the usb c cable we provided and a charging adapter to charge the case within 1 hour to charge fully. Built-in dual LED power display allows you to grasp the remaining power of the charging case and the charging status of the earbuds in real-time. Auto Quick Pairing Turn on the Bluetooth of the smartphone and take out the earphones from charging case, the headset can be automatically paired and connected to the phone. IPX7 Waterproof Featuring IPX7 waterproof rating is adopted to resist splashes, rain, and sweat, makes it ideal for outdoor activities and casual sports. The standard ensures dripping sweat or moisture won’t enter into the earpiece. Ultra Lightweight Design Compact and ultra-lightweight, you will not have any pressure on wearing the 3g ultra-light ear buds. The in-ear earbuds are ergonomically designed to fit snugly into each ear and ensure a comfortable and secure fit. Easy to Carry Small and cute, the pocket-sized charging case is portable to carry in your pocket or bag, you can enjoy music anytime and anywhere during the journey. With the better functions and the exquisite design, our bluetooth headphones are your better choice for a gift. Multiple Using Modes Binaural Mode - Fully immerse yourself in the world of music. Sharing Mode - Share the moment with a friend or family member. Monaural Mode - For safety, only wear one wireless ear buds when driving. FAQ Q: Why does only one earbud work? A: If one earbud does not work during use, It maybe the twin earbuds have not paired with each other. This time we can try to reset it. Q: How to reset? A: 1)Delete all “M30” from the Bluetooth menu on your phones and deactivate the bluetooth setting. 2) Place both earphones into the charging case correctly, then take out two earbuds simutaneously and they will automatically power on and paired to each other. 3) Activate the bluetooth setting and find M30 to connect.