1、oraimo Riff features an innovative ergonomic design and the weight of single earbud is only 3.5g, forming an exceptional experience of premium comfort. 2、The rich and punchy bass along with the crystal-clear audio ensures that you can groove to your favorite music albums to the fullest. 3、ENC technology will effectively suppress environmental noise, making the person you are calling hear your voice more clearly. 4、Open the case and earbuds will automatically connect with your device. Just set up once and you can just enjoy the convenience. Features: oraimo Riff features an innovative ergonomic design and the weight of single earbud is only 3.5g, forming an exceptional experience of premium comfort. The rich and punchy bass along with the crystal-clear audio ensures that you can groove to your favorite music albums to the fullest. ENC technology will effectively suppress environmental noise, making the person you are calling hear your voice more clearly. Open the case and earbuds will automatically connect with your device. Just set up once and you can just enjoy the convenience. With IPX4 waterproof, oraimo Riff can accompany you through rain and workout time. No fear, all the way. HOW TO USE: Touch Control Right Earbud Play/Pause Music ： Tap x 2 Answer/End Call：Tap x 2 Next Track： Long Press For 2s Left Earbud Play/Pause Music： Tap x 2 Answer/End Call：Tap x 2 Last Track ： Long Press For 2s Specifications: BT Version: V5.0 Range: 10m Battery Playtime: 4.5 hrs on single charge; case provides additional 12 hrs Charge Input: T-ype-C Packing List: 1 Pair * Earbuds 1 Pair * Earbuds