MDR-RF4000K Wireless digital RF headphones
Dierences in details
40mm drivers deliver deeper bass, lower distortion and wider dynamic range.
Stay comfortable as long as you listen
A wide, self-adjusting headband distributes the headphone's weight over a wide area, reducing pressure and
improving comfort.
Listen from a distance
Radio Frequency (RF) transmission sends signals from the transmitter to the headphones, allowing high delity
sound reproduction. You can enjoy the accompanying reception range – up to 100 feet – even when you move
outside the line of sight of the transmission.
Battery life for extended viewing
The supplied rechargeable NiMH battery lets you enjoy up to eight hours of continuous on a single charge1. The
slim, folding design ts snugly into the charger (included). Substituting a single AAA battery for the rechargeable
NiMH pack provides 10 hours of power.
Specications
Audio
Distortion 1% or less (1 kHz)
Driver Unit 40 mm
Eective Range Approximately 100 feet (30 m)
Frequency Response 10 - 22,000Hz
Transmitter 2.404 GHz - 2.476 GHz, GFSK
Tuning Auto Tuningon headphones
Volume Control Yes (Rotary)
General
Design Over-the-head, Home-Surround Sound
Diaphragm PET
Headband Wide, Self-Adjusting
Magnet Neomydium
Power On/O Power turns ON when headphones are worn; Red LED illuminates
Type of Use Home
Hardware
Communication Wireless Digital 2.4GHz Radio Frequency
Headphone Type Closed, Dynamic
Inputs and Outputs
Audio In Analog Phono Input (left/right), Analog Stereo Input mini jack (x1)
Power
Battery Charging (Approx) 15 hours
Battery Indicator Power-on LED indicator
Battery Life (Approx) 8 hours
