Feature: 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). Package List: 1 x Keyboard1 x Instruction1 x 2.4G Receiver1 x Charging Cable1 x Keyboard Protector1 x Mouse