Haier 658-liter door-to-door refrigerator BCD-658WDIBU 1. The 658-liter door-to-door refrigerator BCD-658WDIBU 1 adopts a 2 1.5-inch TFT HD screen to realize visual interaction, networking and fresh control. Intelligent pyroelectric human sensation technology, when people approach the refrigerator 1.5M, the display screen will automatically light up. Intelligent voice query the required content, just ask, and intelligently find the required recipes, songs, commodities and other applications.