Monoprice 110222 Self Amplified Digital Keypad with Bluetooth and Analog Inputs Take your home theater to the next level with this Self Amplified Digital Keypad with Bluetooth and Analog Inputs from Monoprice This Self-Amplified Digital Keypad features a 6 watts per channel amplifier a Bluetooth audio receiver and three analog audio inputs The dimensions of the keypad are 5. 5" x 4. 7" x 1. 8"