Hyperion Motorola Droid Bionic 4G Extended Battery Matte Purple TPU Case (Retail Packaging) Designed specifically for the Hyperion Motorola Droid Bionc 4G Extended Battery and Phone Cover. Also fits most other generic and branded 3500mAh, 4000mAh, or 4200mAh Droid Bionic 4G extended battery models. Hyperion cases are designed to provide optimum performance with their ultra thin TPU matte finish. Access to all phone functions, sync/charge & headphone jacks. Open access to speakers, microphone & camera. Not Compatible with Verizon OEM, or Seidio branded extended batteries and back covers.