Description
With its brilliant cordless design, the lightweight Sony MDR-IF330RK Open Air Wireless Stereo Headphone lets you move around the room and enjoy the music you love for hours. It connects to TV, VCR and audio systems through the supplied cord and plug adapter, and has two audio inputs that let you switch easily between sources. Its high-power infrared transmitter incorporates multiple Light-Emitting Diodes (LEDs) for extended coverage range. Ferrite magnets combine high energy and small size, for ample sound output. Complete kit includes high-powered transmitter/recharger, headphones, rechargeable battery, connecting cable, UniMatch plug adapter and AC power adapter.
Technical Details
- Stereo headphones have a 23-foot range
- Adjustable headband
- Automatic on/off input selector
- Ni-cad battery (included) lasts 35 hours between charges; AA batteries (optional) have 100-hour life span
- Deep bass drivers
Users reviews:
No reviews yet
Amazon reviews:
1) As long as you place the headset back on the cradle when you are not using it, you can forget about changing batteries or recharging.
2) A switch on the cradle switches cleanly between 2 program sources, such as 2 TVs or a TV and a stereo.
3) It turns on automatically when you put it on your head, turns off when you take it off.
Looking at some of the reviews I have to point out the difference between infrared (I/R) and radio frequency (R/F) headphones. The Sony is I/R.
I/R works the same way as the common type of remote control. You have to be either in line of sight of the cradle or where the beam can reach you after 1 bounce from a wall. It is more suitable for watching TV rather than listening to stereo unless you are willing to limit yourself to one room.
R/F broadcasts like a radio and has the advantage of at least the potential for working around the house, but introduces the following problems:
1) Tuning to the exact frequency is required and it may need to be retuned as you move around.
2) Potential interference with other R/F sources such as wireless phones.
3) Making sure that the source is strong enough to give you a good signal to noise ratio. This is especially true if you are using them with a TV. This can usually be solved by just turning the TV's volume up.
The headphones, however, were not that comfortable. They hurt my ears after about 30 mins. Also, my ear pads tore off after about 4 months of use. I got replacement earpieces and I used them for about another 4 months. One day I just grabbed the headphones to take them off and they broke. I guess I should've taken them off with two hands, but that plastic on top is pretty weak.