Is this an Aria Pro II PE? It's translucent blue and a Les Paul shape. Two black pick-ups, 4 peg head, two per side rather like a rickenbacker shape, gold fittings and 4 control knobs in black. No pick-guard - all rear installed electrics. I got this in a swap for a Japanese telecaster when asked to play bass in a band. Without ant documentation coming with it I've had a real problem understanding what this is - I worked out how the controls worked by opening up the cover. I also found that it's active - does anyone know how long these batteries last? Does the bass just go dull when it's worn out?