Product description · CVC intelligent noise cancelling to provide high quality music · Can display bluetooth power on your Phone · Support multi-point control, easy to use even wearing gloves. · Bluetooth version: V4.1 · Workable distance: 10m (barrier-free space) · Charging hours: 2.5 hours · Use: For iPhone Samsung Xiaomi Meizu Huawei Android Mobile phones, Portable Media Player Package Contents 1 x Elysium Wireless Headphones 1 x User Manual 1 x USB Charging Cable 1 x 3.5 mm Audio Cable 1 x Pouch 1 x Black Retail Box How to connect this wireless headphone to your phones: For you use this bluetooth earphone first time, Please follow those steps: 1. Open your phone bluetoot button; 2. Press the ON/OFF button (about 5 seconds) until (not loosen) you can see blue red light flash quickly; 3. Wait you phone find the "Oneodio Elysium" wireless headphones; 4. If you phone found the "Oneodio Elysium" device, please click it, then your phone will connect it auto; Note: Please make sure the Elysium wireless headphones is enough power when you do the steps.