You do not need a special back cover to use this battery
This package is specifically designed for the cellphones we list here, if your cellphone is not in the list , then it's not for you.
These batteries does come with NFC (Near Field Communication) feature.
100% Brand New.
4450mAh Rechargeable Li_ion NFC Battery:
* Brand: Sporting Persistence .
* High quality Li-Ion battery.
* Battery Type: Lithium Ion.
* Battery Capacity: 4450mAh.
* Voltage: 3.85V.
* The best spare battery for your phone.
* Best Replacement for the original battery with comparable standby and talk time .
* Our battery is sent out with little or no power, so please charge it for about 4 - 6 hours before using.
* Keep an extra battery on hand for extend standby and talk times.
* Integrated microchip prevents overcharging and lengthens battery life.
Compatible models: Samsung Galaxy S5 Sport SM-G860P (Sprint)
2>Fish Bone Winder Rubber:
* Flexible and washable if need .
* Unique cable winder for organizing your earphone cord
* Compatible with Headphone Cable,Telephone.Cable, Mouse Cable,etc
* Size: 6.4 cm x 2.8 cm Material: Silicone
* Color:as shown in pictures.