A new streaming device, reportedly a replacement for the Chromecast with Google TV, has started appearing in stores, priced at either $20 or $30. The device, which may be part of Walmart's Onn brand, supports 4K and Google TV, but its features, such as Dolby Vision, are not entirely clear. The device's availability and exact specifications are still emerging, with some outlets suggesting it may offer premium features at a budget price.