Tablet Bluetooth-compatible keyboard combined with protective case, convenient for a business trip The Bluetooth-compatible 3.0 keyboard has a long-lasting button life, durable to use With a pencil loop for storage, so that you are not afraid of losing your pencil 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 Slim and lightweight design, convenient for travel, business trip, etc. Specifications: Bluetooth-compatible: 3.0 standard Effective operating distance: 10 meters Modulation method: GFSK Working voltage: 3.0-4.2V Working current: 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 24 hours Hope you have a pleasant shopping experience!