Pyramid PB444X Super Blue 2-Channel Bridgeable Amplifier with a maximum output of 400 watts. Equipped with a MOSFET power supply for reliable performance, it features a sleek blue design. The amplifier comes in its original retail packaging, which shows minor signs of handling. The amplifier itself appears unused and is still sealed in protective plastic. Specific features include bridgeable channels for flexible audio performance. Suitable for car or home audio systems.