F50 sport music heart rate monitoring nordic 4.0 health wrist band with micro-SD card support

Function list:

* Monochrome graphics lattice screen ,always show,back light
* Nordic 4.0+CRS 4.0
* Support Apple and Android APP
Nucleus/Support the above IOS8 and the above
* Green light heart rate
* MP3 play, Micro SD card Maximum support 32G
* Healthy heart rate model,Round-the-clock Intermittent monitoring(Once every 10 minutes)
* Sports heart rate model, Real-time monitoring
* Step number/Calorie/Mileage
* Sedentary remind, Sleep monitoring * 150mAh, (Comprehensive use of 2 days / Exercise heart rate 30 hours / MP3 music 6 hours)
* Black, silver