For Microsoft Surface Pro 7+ / 7 / 6 1109-D Ultra-thin Detachable Backlight 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 interface 2. Effective distance: less than 10 meters 3. Standby current: less than or equal to 0.3mA 4. Working current: less than or equal to 9mA (full load working current) 5. Sleep current: less than or equal to 40UA 6. Charging current: 200mA+/-10mA 7. Working voltage: 3.2V-4.2V 8. Charging time: 2H-3H 9. Charging port: Type-C interface