Top PU Leather Case with Bluetooth Keyboard for ZTE ZMAX Z970 Perfectly match to your ZTE ZMAX Z970 Smartphone Standby time: 30 days. Uninterrupted working time: 30 hours Broadcom Chipset: connection is much fast and stable This 2 in 1 case & keyboard with energy saving sleep mode and ideal for home, school, office and mobile use Key Life: 5 million strokes. Operating Distance:10meters