Minicon socket is under the back of the vehicle to one side. His one let down is that when you add him onto a larger toy he doesn't look anything other than an attached pick up truck.
He does not TF how you'd expect ! The front folds forward and down to become the legs, the back of the truck folds out to the sides to become arms, and then the entire back section of the truck folds back at waist before finally the head folds up from what was the middle of the vehicle
The robot has bending knees & hips (separated by black upper legs), a waist that bends back, shoulders that swing to the side and bending elbows. Nice and chunky in this mode and given the right repaint - blue cab and front, red back -he'd make a passable Optimus Prime Minicon
Reverb was available with Jolt & Six-Speed in the Cybertron Recon team. Their Japanese counterparts were the GC-07 Micron Team where they were named Bumper, Hop & Blit. A near identical version of Bumper is available in a Kabaya Micro Change set with the other two Microns in his team and Roots - Vector Prime's Micron.
Overall: Very nice indeed, one of the better Minicons.
The Platinum Microns were released to tie in with Leo Breaker coming out and have colours reminiscent of him.
There's a mistake on the packaging - Jolt is labelled Reverb and vice versa. The Bio note is nice, insinuating that these 3 have adopted a post Cybertron series stealth guise to explore the universe. They come with the Giant Planet Map - Hallelujah, got it at last ! - and have Giant Planet Markings on the card.
Reverb - the pick up truck - is cast in a very pale blue plastic which is almost completely clear apart from his solid black upper arms and legs and clear smoked grey plastic wheels. Looks very ghost like !