Strong magnetic detachable keyboard Multiple viewing angles Skin feel Silicone Shockproof Auto wake/sleep function Built-in pencil slot Honeycomb design for strong heat dissipation Battery capacity: 180mAh. Working voltage: 3.0-5.0V. Operation distance: <10m. Working time: 150 hours. Charging time: 2-3 hours. Standby time: <150 days. Charging port: USB-C.