RoHS stands for Restriction of Hazardous Substances. RoHS, also known as Directive 2002/95/EC, originated in the European Union and restricts the use of specific hazardous materials found in electrical and electronic products (known as EEE). All applicable products in the EU market after July 1, 2006 must pass RoHS compliance. The substances banned under RoHS are lead (Pb), mercury (Hg), cadmium (Cd), hexavalent chromium (CrVI), polybrominated biphenyls (PBB), polybrominated diphenyl ethers (PBDE), and four different phthalates (DEHP, BBP, BBP, DIBP). RoHS 联想 Tab 7, 17.8 cm (7"), 1280 x 720 像素, 16 GB, 1 GB, Android 7.0, 白色 联想 Tab 7. 顯示器尺寸(對角長): 17.8 cm (7"), 顯示器解析度: 1280 x 720 像素. 內部儲存容量: 16 GB. 處理器頻率: 1.3 GHz, 處理器系列: Mediatek, 處理器類型: MT8735B. 內部記憶體: 1 GB. 後置攝影機解析度（數字）: 5 MP, 前置攝影機的解析度（數字）: 2 MP. Wi-Fi 標準: Wi-Fi 4 (802.11n). 輔助GPS(A-GPS)定位技術. 整合式讀卡機. 重量: 260 g. 提供作業系統: Android 7.0. 產品色彩: 白色