| Add even more power to your LEGO® Power Functions! Use the LEGO Power Functions AAA Battery Box to energize your creations with more power than ever before! Features a control switch on the box. Features a control switch on the box Powers 2 XL-Motors or 4 M-Motors at once Same size as #8878 LEGO® Power Functions Rechargeable Battery Box Requires 6 AAA (1.5V) batteries, not included |