The RRP for this says $89.94, and today it is for $39.94. I haven't used this myself and am buying one.
The specs are:
The Frequency range of the Earphone is 20-20kHz
Hi!DSE is selling TDK LoR ST-600 USB Gaming Headset for $39.94(save $50) with free delivery(online only).$80 at ebay plus shipping.i think this is very good price for the quality brand.The TDK LoR ST-