Combine this sleek receiver box with the 5394X forward-only kit to trim weight from your Revo for maximum track performance, The compact box features a blue-anodized antenna clamp nut a tight-fitting contamination-resistant cover and an integrated on-off switch mount, The box can accomodate 4 AA cells or a 5-cell rechargreable NiMH flat-pack, There"s even a built-in personal transponder mount for extra convenience on race day, When converting to forward only part 5325R completes the sleek race look and by replacing the standard servo box with a lightweight low-profile mount, SKU: RCTRA5324X