I had these listed before at $48.00 pr. and apparently need to lower the price. These are ITE 500 series purchased 1.5 yrs ago. They are basic but worked well for me until I afforded Panoptics. I hate to see them go to waste. If anyone is interested, I can sell them individually for $19.00 each or $35.00 for the pair. Either way, I will include the shipping.