Fat Shark 8 RC Vision Systems1000mA Battery PackThe Fat Shark dog bone shaped 1000mAh packseats securely in the headset strap pocket. Thebattery cable extends out of the top of the pack toavoid contact with head strap. Barrel connector cablefeatures high strand count wire for flexibility and longlife. Wire stress is minimized by the additional rubbergasket around the cable exit. No special charger isneeded as balance leads have been added forcharging with standard RC chargers (battery includesdischarge lead adapter for advanced chargers).Note: this battery can still be charged via the barrelconnector with the original Fat Shark headset batterycharger.Diopter lensFor near sighted users, diopter lens insert sets are available that include -2, -4 and-6 dpt. See below inserting location. Lens orientation is not critical.Adjustable EarphonesFor simplicity and minimalist controls, the AttitudeV2 does not have volume control.Audio is outputting atmax volume and needs tobe adjusted to comfortablelevel via adjustablevolume earphones.