Anyone seen any reviews or sites for purchase for these?

Here are some details:

Features

Correspond with the transmitter of Panasonic RP-WF5500, this latest digital wireless headphone from Panasonic adopts 2.4 GHz digital radio transmission and supports 5.1ch Dolby surround sound. It light-weight body and soft earpads allow it to stay comfortable around the ears and fit nicely around the head. Produces high quality sound even in a 30 meter distance. The rechargeable batteries will last up to 6 hours. Available only in 1 color.

Specifications

Type: Open air type
Use unit: Diameter 40 mm
Playback frequency zone: 20 - 22,000 Hz
Power source: DC 12V or DC 15V (2 single 3 alkaline dry cells)
Battery charging time: 3 hours
Electric battery duration: 6 hours
Mass: 255 g

Accessories

Charge type nickel hydrogen electric battery