Description Bring your amplifier case design projects up to date with the Kitronik Bluetooth Stereo Amplifier Module (incl 2x 3W speakers) and play music from a phone, tablet or computer wirelessly. The kit is supplied with 2 x 4 Ohm 3W speakers, which have flying leads that are already connected to the speakers and each terminates in a super handy JST connector that slots straight into the board.