With its modular design, this finger robot is highly applicable and has both voice control and timed appointment functions. You can create groups in the APP to manage permissions to control all the finger bots in the house and share the device with your family. It is constructed of plastic material. There are 3 styles to choose from. The product is suitable for home, office, indoor, etc. Item Name: Finger Robot Material: Plastic Features: Scheduled Appointment, Voice-Control, Bluetooth-compatible Style A: Accessories Style B: 3 Generation Bluetooth-compatible Finger Touch Robot Style C: Bluetooth-compatible Wireless Gateway Battery Capacity: 800mAh Movement Range: 12mm Load Capacity: 15N Clickable: 15k Times Size Details: A: LxWxH: 4cm x 4cm x 4cm/1.57" x 1.57" x 1.57"(Approx.) B: LxWxH: 3.4cm x 3.4cm x 3.4cm/1.34" x 1.34" x 1.34"(Approx.) C: LxWxH: 6.5cm x 6.5cm x 1.5cm/2.56" x 2.56" x 0.59" (Approx.) Notes: Bluetooth-compatible gateway is not required for peer-to-peer control at home, only when you are not at home. Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: Style A: 7 x Accessories or Style B: 1 x Finger Robot or Style C: 1 x Gateway