This product is a set of "SABER RIDE WATCH" that has the power of Kamen Rider Saber and " DECADE COMPLETE FORM 21 RIDE WATCH " that has the power of Kamen Rider Decade Complete Form 21. Set "DX DECADE RIDE WATCH" (sold separately) to "Henshin Belt DX Ziku Driver" (sold separately), and set "SABER RIDE WATCH", Kamen Rider Zio Decade Armor Saber Form transformation sound can be activated. The voice activated by setting " SABER RIDE WATCH " and " DECADE COMPLETE FORM 21 RIDE WATCH " to "Henshin Belt DX Ziku Driver" respectively. Also, when you press the button on the top of each ride watch, a unique voice will be activated.