This is the W-bot Willbot from Sega Toys, released in 2001. I confirmed basic operations: it speaks when batteries are inserted, moves forward and backward, and responds to simple commands. I have not confirmed all actions. The instruction manual and box are not included. The W-BOT can also converse through voice. When spoken to, it responds with "Hello" and "Yes, I can hear you," and by continuing the conversation, it learns the user's attributes such as gender and age, changing the content of the conversation. Furthermore, it is equipped with a two-legged walking function. It can move forward and backward, and turn left and right by moving its knees and ankles, and it can also avoid obstacles using sensors. The size is 185 (width) x 360 (height) x 160 (depth) mm. Power is supplied by 4 AA alkaline batteries and 2 AAA alkaline batteries. Continuous operation is 6 hours. There are minor scratches and sun damage from use. Please judge the condition based on the images, as the description may be incomplete. If you are unsure, please refrain from purchasing. 【Search terms】 Two-legged walking robot, two-legged walking robot, Asimo, Roboactor, Action Robot, Robo Arco