Promaster 6490 AHDBT-301 GoPro Battery Modifier & Reflector Accessories All-element focusing keeps it small

All-element focusing keeps it small

It can be removed to create a more malleable feel to the pouch if so desired

complete with MagMod’s patented magnetic modular light modification design

In this case two floating focus groups are driven by independent DDSSM systems for precision positioning of the relatively heavy lenses required for macro photography

the other battery automatically switches on to continue operation

Promaster 6490 AHDBT-301 GoPro Battery Modifier & Reflector Accessories All-element focusing keeps it smallFeatures: PROMASTER batteries are a high quality, long lasting power source for your digital camera or camcorder. All PROMASTER replacement batteries are manufactured to meet or exceed the equipment manufacturer's specifications. Specifications: 3. 7V 1050mAH Replaces Go Pro AHDBT 301 battery.