- Model: IR300D<br />- Color: Black<br />- Stylish and lightweight IR headphone<br />- System: <br />- Infrared wavelength: 850nm<br />- Carrier frequency:<br />- Channel A: Left channel: 2.3Mhz / Right channel: 2.8Mhz、<br />- Channel B: Left channel: 3.2Mhz / Right channel: 3.8MHz<br />- SNR: >=50dB<br />- Frequency response: 30-15000Hz<br />- Operating range: up to 12 meters<br />- Automatically mute for headphone and auto power off if no signal is received about 5 minutes<br />- Suitable for any car audio device<br />- Power by 2 x AAA batteries (not included)<br />- Comes with English manual<br /><br />                                                                                                                                Dimensions: 6.69 in x 5.91 in x 0.98 in (17.0 cm x 15.0 cm x 2.5 cm)<br />Weight: 6.21 oz (176 g)<br /><br />