Robosen is behind some of the coolest auto converting robots in the past. The Soundwave is another one with cassette and robot modes. It also has G1 Soundwave voice and sound effects. There are 5 programming modes for you to choose from. It looks like a cassette player but also works as a Bluetooth speaker.
This robot has articulating hip joints that can rotate up to 90 degrees. It has 84 microchips and 28 smart servo motors. Soundwave is ready for block-based, voice activated, and manual programming.