Apple iPad has on-screen keyboard to facilitate typing routine. However, if you already own Apple Wireless keyboard - then you can configure it for use with iPad. You need to enable bluetooth on iPad in order to use Apple Wireless keyboard for typing routine instead of using the default
How to Detect & Monitor Bluetooth devices around?
It is always advisable to turn off bluetooth when not in use or when not required. Bluetooth is a cool way to connect and transfer stuff you need. Making things more easy is a small utility BluetoothView. It runs in the background and monitor the activity of Bluetooth devices around