To transform, the user scans the ♡A. Change Mantis Rouse Card at the center of the belt. In addition, by scanning the ♡2. Spirt Rouse Card, the transformation release sound will play, and by scanning other Rouse Cards, you will transform into each Undead scanned in said item. The item also has a dialogue/sound effect button on top, which plays some of Hajime Aikawa's (role reprised by Ryoji Morimoto) iconic lines. Furthermore, there's a BGM button at the bottom of the Chalice Rouzer, which can play 10 BGM songs that symbolize Chalice.
The lever part of the Chalice Arrow is also designed to move so that it can be pulled out by pressing the attack button after pulling out, thus activating the shooting sound. Aside from the Normal Mode, it also has a Dialogue Mode in which Hajime's shouts are added to each attack. It also has a sound effect button, which allows you to activate various sound effects to enhance playability. Some of those sound effects are "throwing a Rouse Card" or "sealing the Undead" sound.
This Premium Bandai web exclusive set cost 69,300 yen, and is set for a December release. Lastly, you can also purchase the CSM Chalice Rouzer as its own set, which just includes the Deck Holder and the 28 Rouse Cards for 29,700 yen, which is also set for a December release. Pre-orders will end on June 30th.