"Whether it’s a million-dollar hook or a soul-wrenching solo, some licks are just begging for some undivided attention from the Compressor/Limiter CL9. By pumping up quieter notes and bringing down the louder ones, this little magic box packages your sound into one velvety-smooth and consistent volume. With the CL9 in your pedalboard – you’ll enjoy virtually-endless sustain and ultra-stable dynamics!
 

• "Smoothes out" volume peaks and provides endless sustain with ultra-stable dynamics
• Dedicated Sustain, Level and Attack time controls for awesome sound shaping
• Status LED for effect on/off and battery check
• First-class electronic On/Off switch for highest signal integrity in bypass mode
• Designed and engineered in Germany"

In great condition all round, though has some velcro on the underside from its previous life on a pedal board. You may also find a small mark or two on the case under close inspection.
Requires a 9v battery or power supply (not included).
Comes with box and instruction pamphlet.