1. CONNECT THREE DEVICES: The Bluetooth keyboard can connect to three devices simultaneously, allowing seamless switching between them. 2. BACKLIGHT EFFECT: The transparent keyboard shell allows you to clearly see the internal structure of the keyboard. With the backlight effect, you'll experience something different. 3. 10M OPERATING DISTANCE: The wireless Bluetooth keyboard is waterproof, dustproof, and can be used effectively within 10 meters. 4. WIDENING AND ENLARGEMENT: The 10-inch keyboard features widening and enlargement processing. The keys are silent, with a scissor-type mechanism for fast typing, providing a better experience. 5. APPLICATION SCOPE: Portable, ultra-thin, can be used with smartphones, tablets, laptops, and desktops. Item Type: Transparent Wireless Bluetooth Keyboard Material: ABS, Iron Plate Bluetooth 3.0: Standard MICR Interface Effective Operating Distance: Within Approx. 10 meters / 32.8ft Modulation Mode: GFSK Operating Voltage: 1.8 to 3.6V Operating Current: <2.0mA Standby Current: 0.3 to 0.5mA Sleep Current: <40uA Charging Current: ≥200mA Standby Time: >30 days Charging Time: <2 hours Built-in Polymer Lithium Battery: 400mAh Continuous Working Time: 44 Hours Key Force: 80±10g Key Lifespan: 5 Million Clicks Operating Temperature: -10 to 55℃