Panasonic Japan has announced two noise-canceling headphones to be released on June 20th. The RP-HC31 and RP-HC55 feature a non-detachable noise reduction unit which reduces low-frequency noise by 15 and 18dB for 27 and 20h of battery life respectively. They are priced at $65 for the RP-HC31 and $90 the RP-HC55.

Specifications (RP-HC31):
► Frequency response: 08Hz ~ 22kHz
► Nominal impedance: 20Ω
► Sensitivity: 100dB/mW
► Power handling: Unknown

Specifications (RP-HC55):
► Frequency response: 10Hz ~ 20kHz
► Nominal impedance: 103Ω
► Sensitivity: 105dB/mW
► Power handling: Unknown