Sony MDR-IF540RK - Infrared Wireless Stereo Headphone System with Multi-LED Diode Transmitter
The Sony MDR-IF540RK is a low-cost Infrared wireless headphone system, designed for home enjoyment monitoring of, and simple connection, to televisions, stereo tuners, and CD or minidisc components. The transmitter, which contains multiple LED IR diodes, also functions as a battery charger, with an LED charging status indicator light, and the Automatic On/Off function, based on signal presence, helps conserve headphone battery life.
The MDR-IF540RK NiMH battery powered headphones feature the Vibration Function audio experience enhancer, with level control, a mute function protecting the drivers from noise when no audio signal is present, and a self-adjusting headband for listening comfort. The headphones are equipped with 30mm drivers and PET low-mass diaphragms, for extended low and high end frequency reproduction. The system allows mobility within a transmission range of 24 feet.
- Infrared wireless headphone system with multi-LED transmitter diodes
- 2 separate Left, Right transmission channels
- 24' transmission range
- Standard RCA phono and 1/8" stereo mini audio jacks on transmitter for connection to televisions, tuners, and CD or minidisc players
- Comfortable, Open Air headphones with self-adjusting headband
- 30mm headphone drivers for improved frequency response, extended bass reproduction
- High-rigidity PET diaphragms minmize distortion, low mass composite for improved high frequency reproduction
- Vibration Function with level control for heightened presence and realism of sports or movie playback experience
- Auto Power On/Off for transmitter and headphones based on detection of signal presence, conserves battery life
- Headphone Volume control; Mute function cuts sound to headphones when no signal is present, avoids noise
- Rechargeable NiMH or AAA dry battery operation with up to 23 hr. NiMH battery life
- LED battery charge indicator light for transmitter
- NiMH batteries charged by transmitter; Auto Charge function when headphones are secured on transmitter with automatic shutoff for headphones
| Type |
Supra-Aural, Open Air, Dynamic Wireless Headphones Infrared Wireless Transmitter |
| Frequency Range | 18 Hz - 22 kHz |
| Transmitting Frequency Range |
Right: 2.8 MHz Left: 2.3 MHz 24' Transmission/Reception @ 90° Approx. 10' @ 45° |
| Impedance | 24 Ohms @ 1 kHz |
| Sensitivity (0 VU) | 105 db/mW(Headphones) |
| Maximum Input Power | Not Specified by Manufacturer |
| Connectors |
Transmitter: 2 x RCA Phono(L, R), Unbalanced 1 x 1/8" Stereo Mini Jack 1 x 9 VDC In Jack |
| Weight |
Transmitter: 4.06 oz (115 g) Headphones: 6.3 oz (180 g)(with battery) |
Batteries & Power
- Price: $2.49
What's in the Box
- 9 Volt AC Power Adapter
- Stereo Mini to Dual RCA Phono Connector Cable
- Unimatch Stereo Mini to 1/4" Stereo Phone Adapter
- BP-HP550 NiMH Rechargeable Battery
- Owner's Manual
- 1 Year Warranty
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