The boss gt 1b bass effects processor is the perfect choice for bassists wanting a variety of effects in one unit'. '.strtoupper('t')his versatile processor provides players with a wide selection of pro level amps and effects in a light compact unit that can easily fit into any instrument bag'. '.strtoupper('p')layers can easily shape their sound and select any function using the onboard control switches and expression pedal'. '.strtoupper('t')he easy to use interface also features colour backlights making the gt 1b ideal for dark performance environments'. '.strtoupper('t')his effects processor can also run on four aa batteries for added effects when mains power is not available'. '.strtoupper('i')f youre looking for simple and intuitive hands free gigging assistant then the boss gt 1b bass effects processor could be the perfect choice for you.