Specification:Item Type: Chinese English KeyboardMaterial: ABSConnection: 2.4G ReceiverNumber of Keys: 78Battery Specifications: Keyboard 2 AAABatteries (not included); Mouse 2 AAA Batteries (not included) Package List: 1 x Keyboard 1 x Mouse 1 x USB Receiver Commitment:Our aim is to provide high quality products. After you buy our products, I will ship them to you as soon as possible, so that you can receive the products as soon as possible. If you have any dissatisfaction after receiving our products, please contact me in time, I will reply all your questions within 24 hours, I will solve all your problems, I will give you a refund or replace the goods. We are committed to providing our customers with a great shopping experience. About this item [ Engraving]---78 key keyboard and mouse use engraving keycaps, durable and comfortable, with clear characters and simple operation.whether you are at the office or at home and reduces wrong typing to some extent. [2.4G Wireless Connection]--- 2.4G wireless connection, fast connection speed and stable transmission, let you deal with any situation.2.4G wireless technology is adopted to provide more stable connectivity and up to 10m effective wireless range. [Mute]---Responsive, durable and resistant to knocking, the keys are silent and silent, and use will not affect relatives and roomy. The silent keys and buttons of both the keyboard and mouse mean you wont disturb anyone while working. A smooth typing experience for both the user and the people around you. [78 Keys]---For 78 keys, a layer of transparent gloss is applied on the font to increase wear resistance and can be used for a long time.Spill resistant, so dont worry if you spill some liquids on this keyboard. Pour yourself a cup of coffee and continue your day. [ABS Material]--- Keyboard mouse wireless is made of sturdy ABS material, which is wear resistant and durable, and can be used for a long time. [ Engraving]---78 key keyboard and mouse use engraving keycaps, durable and comfortable, with clear characters and simple operation.whether you are at the office or at home and reduces wrong typing to some extent. [2.4G Wireless Connection]--- 2.4G wireless connection, fast connection speed and stable transmission, let you deal with any situation.2.4G wireless technology is adopted to provide more stable connectivity and up to 10m effective wireless range. [Mute]---Responsive, durable and resistant to knocking, the keys are silent and silent, and use will not affect relatives and roomy. The silent keys and buttons of both the keyboard and mouse mean you wont disturb anyone while working. A smooth typing experience for both the user and the people around you. [78 Keys]---For 78 keys, a layer of transparent gloss is applied on the font to increase wear resistance and can be used for a long time.Spill resistant, so dont worry if you spill some liquids on this keyboard. Pour yourself a cup of coffee and continue your day. [ABS Material]--- Keyboard mouse wireless is made of sturdy ABS material, which is wear resistant and durable, and can be used for a long time.