ReFuel 2-Pack Battery for GoPro Hero4 connected to a 1" diameter

connected to a 1" diameter ball

Almost any popular lens type can be attached with optional adapters including Canon

and only need to replace the stock lens unit

and roll control

For anyone who needs more versatility from their GoPro® mounting solution

ReFuel 2-Pack Battery for GoPro Hero4 connected to a 1" diameterReFuel's dual battery pack for the GoPro Hero4 Black and Silver Editions. Amazing run time on these replacement batteries for less money. You get two 90 minute rechargeable batteries that replaces the AHDBT 401 battery that comes standard. These batteries are 100% compatible with the GoPro Hero4 action cameras. Premium lithium ion cell battery.