Lionel The Comet Christmas Freight Bluetooth Electric Half O Gauge Model Train Set with remote will be a great addition to any Half O Gauge layout. Comet, the fastest reindeer around, is hauling some special Christmas deliveries via the rails on this festive freight train. Lionel Half O Gauge are 1:87 in scale, are half the size of the traditional O Gauge. These are small enough to build a gratifying layout in an efficient space and are large enough to illustrate all the great details. Half O Gauge products operate on a 2-Rail Half O Fast Track System that has a fantastic exemplary look and features a quick easy snap-together connection. Operation Technology via the Lionel LionChief App includes Bluetooth that allows you to operate your train via any compatible smart device.