Bluetooth mode: (for iPad / phone / pc / laptop / notebook / tablet) 1.push the power switch to the end marked with the Bluetooth logo (when the light was long red) 2.press and hold the left and right mouse buttons and the middle scroll wheel at the same time for 5 seconds (when the light can be seen to blue and it will slowly flash) 3. Find the Bluetooth on his team and paired with it Keyboard (rechargeable): Charge once can be used for 30 days and standby for 120 days. 1. Bluetooth 3.0 standard interface 2.effective operating distance: within 10 meters 3