• Sony MDR-IF140K Cordless IR Headphones.

Features

• Infrared cordless headphone system.
• Light-weight headphones for extended listening comfort.
• Signal reception area of up to 7 metres (direct distance) and 3 metres (at +/- 45 degrees).
• Self-adjusting headband provides a precise comfortable fit.
• 30 mm driver unit of headphones delivers high-quality sound.
• Power On/Off manual switch available (to preserve battery power when not used).
• Easy connection with TV, VCR, Hi-fi system, or PC.
• Volume control function on the headphones.
• Up to 60 hours playback with AAA Alkaline battery (not supplied).

General Data

• Open Air Type  YES.
• Closed Type  NO.
• Dynamic Type YES.
• Wearing style  Supra aural.
• Driver unit (mm) 30.0.
• Frequency response (Hz) 18 - 22,000.
• Magnet Ferrite.
• Power ON indicator YES.
• ON/OFF function Manual switch.
• Mute function Automatic.
• Diaphragm PET.
• Volume control YES.
• Battery number 1.0.
• Battery type - normal AAA.
• Battery life - normal (h) 60.0.
• Weight (g) 125.0.

Transmitter

• Transmission type IF.
• Signal range (m) 7.0.
• Battery charge indication NO.
• Power ON indicator YES.
• Distortion rate (% at 1 kHz) <1.
• Transmitter frequency range (Hz) 20 - 20,000.
• Transmitter power ON/OFF Automatic.
• Stereo mini jack input YES.
• RCA jack input YES.
• Weight (g) 75.0.
• Supplied accessories.
• AC adaptor YES.
• Rechargeable battery NO.
• Connecting cords YES.
• Plug adaptor YES.
• Dimensions Width (mm) 152.0.
• Heigth (mm) 38.0.
• Depth (mm) 72.0.