Tablet Bluetooth keyboard combined with protective case, convenient for a business trip The Bluetooth keyboard has a long-lasting button life, is durable to use The keyboard has a built-in lithium battery, convenient to charge and use Can be converted to a supporting stand for hands-free movie watching and web surfing Fine workmanship, and equipped with a backlit so that you can normally use it at night The integrated Bluetooth keyboard case comes with a touchpad, restoring laptop features Slim and lightweight design, convenient for travel, business trips, etc. Specifications: Bluetooth: Bluetooth 5.3 Material: PC+TPU+PU leather Operating Voltage: 3.0-4.2V    Number of keys: 64 keys Continuous working time: ≥ 5 hours    Working current: 8.5-120mA Standby current: 1mA  Low battery alarm: 3.0-3.3V  Battery capacity: 500mAh   Standby time: less than 150 days Key life: 3 million times   Battery life: 3 years Connection distance: ≤ 10 meters    Key strength: 50-70g Charging current: 250mA  Charging Interface: Type-C USB Wake-up time: 2-3 seconds    Charging time: 2-3 hours Random password: None      Operating temperature: -10-55℃ Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 341 hours Hope you have a pleasant shopping experience!