Check the listing for details. Akai AT-3000RDS Quartz Synthesizer Tuner. Condition: Used. Listed at 71.60 USD. AKAI AT-3000RDS Quartz Synthesizer Tuner There is a small yellow sticker next to the display. There are residues of white wall paint on the cable. Our guarantee for used devices is 1 year. They are legally obliged to return used batteries as an end user. You can return batteries free of charge after use to the seller or in the return points provided (e.g. in municipal collection points or in trade). You can also send the batteries back to the seller by post. In any case, the seller will reimburse you to post off your old battery. The symbols shown on the batteries have the following meaning: = Battery must not be put in the household waste PB = battery contains more than 0.004 mass percent lead CD = battery contains more than 0.002 mass percent cadmium HG = battery contains more t.