For Microsoft Surface Pro 7+ / 7 / 6 1109-A Ultra-thin Detachable Bluetooth Keyboard Leather Tablet Case with Touchpad(Black)

1. Multi-angle stable support to meet the needs of different angles.2. Detachable keyboard, more convenient to use.3. All-round protection, to prevent the four corners of the equipment from bumping, wear and tear.4. Low-noise keys do not disturb others.5. Bluetooth chip, stable connection, fast speed and low power consumption.Parameters:1. Bluetooth standard interface2. Effective distance: less than 10 meters3. Standby current: less than or equal to 0.3mA4. Working current: less than or equal to 9mA (full load working current)5. Sleep current: less than or equal to 40UA6. Charging current: 100mA+/-10mA7. Working voltage: 3.2V-4.2V8. Charging time: 2H-3H9. Charging port: Type-C interface