You can use iPad with the Apple Wireless Keyboard and other Bluetooth devices, such as Bluetooth headphones. You must first pair a Bluetooth device
Learn how to use Apple wireless keyboard on iPad. You can use an additional keyboard for an iPad instead of using the onscreen keyboard
Learn how to use Bluetooth on Samsung Galaxy S3. You can exchange data or media files on your S3 with other devices via Bluetooth.
The Wireless Mouse requires batteries and may come in either of two types; RF and Bluetooth. RF device works by establishing radio communication with a receiver or transceiver or dongle, can be plugged into USB port. The Bluetooth Mouse requires a computer with built in Bluetooth receiver.