How to use the headphones？
1. After unpacking to confirm whether the headset has power (when the power is insufficient, please charge first);
2. Long press long press multi-function key for 3 seconds, the blue light is always on for 3 seconds, red / blue light alternately flashing, accompanied by a ""drop"" tone;
3. The phone open the Bluetooth search headset, from the Bluetooth list, find ""Runner"", and click connect, open the music player to play;
4. There are volume keys on the headset, you can directly adjust the volume, double-click the volume key to cut the song.