Note: Please purchase this product only from sold by Getwow Inc and fulfilled by Amazon. Getwow Inc is the only authorized Amazon seller of Getwow brand. (Some customers have encountered poor quality from other unauthorized sellers and can't get after-sales services)</br>Compatible for Fitbit Force and Fitbit Charge bracelet wristband wireless activity wristband?? not for Fitbit One or other models</br>Quality charge cable with voltage regulator to charge your Fitbit Force and Fitbit Charge more securely when connected to USB power source on PC?? Mac?? Laptop or Notebook</br>Design with portable and lightweight features?? it can bring more convenience for you to keep the Fitbit Force bracelet wristband fully charged in the office?? at home or in travels</br></br>Product Des