This slim battery pack extends the useful life of your mobile devices. Inside are two Samsung Lithium-Ion batteries with a capacity of 6000mAh and a charging voltage of 5V at 2.1A. With the integrated LED flashlight you will always feel comfortable.
Wrap around wire free headphones, designed to stay on your head.
Enjoy your sports and music at the same time, very convenient.
Comfortable and secure for the most users: bicyclist, runners, joggers, walkers
Supports TF card up to 8GB
Connection Type: USB 2.0
Frequency: 20Hz -20KHz
Play time: about 6 hours
Charging time: 1-2 hours
Support Format: MP3/ WMA/WAV