Sony trots out RF865RK wireless headset, NC13 noise-cancelling earbuds

Sony has introduced a pair of new sleek and rather high-end headsets. The RF865RK drops the wires and the NC13 cancels out external noise.
Starting with the RF865RK headphones, this ear-padded headset sports rechargeable batteries that can get extra juice from a specially-designed docking station. These headphones take approximately 3.5 hours to charge but then deliver up to 25 hours of audio playback.
As for the audio quality, the RF865RK headphones host 40mm driver units and a 10-22,000Hz frequency response time with the intention of delivering a deeper and clearer bass sound.
Then we have the petite NC13 in-earphones, which cancel out ambient noise by up to 87.4%. To take advantage of this function, the unit requires one AAA battery. That should guarantee up to 100 hours of playback time. With the same frequency response time as the RF865RK, the NC13 uses a 13.5mm driver.
Pricing and availability for the RF865RK headphones have not been announced yet. The NC13 earbuds, however, will start shipping tomorrow and cost $69.99.