The Sony MDR-DS6000 is a 2.4GHz RF wireless 5.1 surround-simulating headphone system using proprietary VPT (Virtual Phones Technology), which enables listeners to enjoy movie-theater-like "live" surround sound.

The MDR-DS6000 system offers a transmission range of over 100', and is compatible with DTS and Dolby Pro Logic II. The headphones are equipped with 40mm drivers, offering an extended frequency reproduction and a wide dynamic range. 

2.4GHz wireless 5.1 surround headphone system with VPT virtual surround technology
Built-in DTS, Dolby Pro Logic II, and DTS Virtual 5.1 decoders reproduce 5.1 channel sound
Built-in Dolby Pro Logic decoder accesses surround sound tracks often included in VHS hi-fi, stereo TV, and other traditional sources, providing a "live" theater-like experience 
The 100' transmission range offers full-band, full listening enjoyment throughout the listening area, and allows user freedom of positioning
Large 40mm headphone drivers provide extended bass reproduction and a wide dynamic range
Unique closed-back headphones provide optimum isolation, extended frequency reproduction, and comfortable long-term use 
Comfortable adjustable headband and custom padded earcups
NiMH battery with 7.5 hours of battery life, recharges at base/transmitter (may require new batteries)
Digital and analog connectivity (Digital Optical Audio Toslink cable included!)

Type2.4GHz RF Wireless Headphone System with Circumaural, Closed-Back Surround Headphones
Frequency Range12Hz - 22kHz (Headphones)
20Hz - 20kHz (System)
Impedance16 Ohms
Sensitivity (0 VU)104dB/mW 
Maximum Input PowerNot Specified by Manufacturer
Connectors1 x TOSLINK
1 x 3.5mm Stereo Mini
Weight10 oz (284g) (Including Battery)