Spare housing for RC-4x, RC-86 or RC-80 - 2 buttons, black
Spare housing for RC-4x, RC-86 or RC-80 - 4 buttons, black
Spare housing for RC-4x, RC-86 or RC-80 - 2 buttons, white
Spare housing for RC-4x, RC-86 or RC-80 - 4 buttons, white
Maintenance-free rechargeable lead-calcium batteries with 12V voltage. They have a long lifetime and they do not need any other care other than charging.
