Sony MDR-IF240RK review
Go wireless with your music. The MDR-IF240RK wireless stereo headphone
system features 30mm drive units for deep bass, up to 60 hours of battery
life with an optional alkaline battery or up to 35 hours of battery life
with the supplied NiHM rechargeable battery, and a transmission range up to
24 feet. Also utilize the transmission coverage angle-up to 90°.
Permitting an easy connection to your home audio system, TV or VCR, these
headphones provide a personal entertainment experience you can move to.
Features Mute function, wide headband, automatic headphones power switch
and single volume control.
Transmission 24 foot transmission range for listening enjoyment throughout
the room and 90° transmission angle (maximum) for uninterrupted listening
as you move around the room.
What is Infrared? Infrared transmission works by sending out infrared light
signals from the transmitter to the headphones. Infrared signals are
resistant to external noise and interference, but the headphones must be
within line of sight of the transmitter because the signal can’t pass
through walls, furniture, or other obstacles.
Design Light weight so you can wear them comfortably for hours on end and
open-air design lets you continue to hear ambient sound.
Supplied Accessories Includes high-powered transmitter/recharger,
headphones, rechargeable battery, connecting cable, UniMatch® plug adapter
and AC power adapter.
Sound 30 mm diameter drive units for deep bass, low distortion and wider
dynamic range. PET diaphragms ensure high rigidity for minimum distortion.
Ferrite magnets combine high energy and small size, for ample sound output.
Battery Rechargeable battery (supplied) automatically recharges when you
place the headphones on the supplied transmitter. Up to 100 hours of
battery life with optional AA alkaline battery; up to 30 hours life with
supplied rechargeable NiCad battery.