Features: 1.Double Mode: The wireless keyboard mouse set has double modes of 2.4G wireless mode and Bluetooth mode, can be switched smoothly to use. 2.Multiple Compatibility: Suitable for a variety of devices, for PC, computer, having 4 channels to connect with 4 devices at the same time to meet the needs of different users. 3.Comfortable Use: Suitable inclination, more comfortable and smooth operation tilt stable triangle, can enjoy faster input speed, quiet operation, concave design to fit for finger belly, feel comfortable and delicate. 4.Stable Connection: 2.4G wireless technology ensures stable connection, avoiding frequent disconnection, and providing smooth operation experience. 5.Waterproof And Dust Proof: Wireless Bluetooth keyboard mouse set has a soft and comfortable silicone dust mat, feel comfortable, waterproof and dust proof. specification:Item Type: Wireless Keyboard Mouse Set Material: ABS Keyboard: Key Service Life 10 million times Key Quantity: 100 Mouse: DPI: 1000-1200-1600 Key Quantity: 4 Built In Polymer Lithium Battery: 400mAh (Keyboard); 400mAh(Mouse) (Shipped With Built In Battery) PackageList:1 x Keyboard 1 x Instruction 1 x 2.4G Receiver 1 x Charging Cable 1 xKeyboard Protector 1 x Mouse