Headset Total Harmonic Distortion: <5%
HP Matte Presentation Paper
Omnidirectional Microphone
Microphone Impedance: 2200 Ohm
Everything about these headphones is about comfort: The deluxe lightweight leatherette ear cups and headband are made to keep pressure off your ears
PANASONIC PT-LB386 3800 ANSI LUMENS XGA HDMI PROJECTOR CPU Cooler Headset Total Harmonic Distortion: <5%Panel size 16. 0 mm (0. 63 in) diagonal (4: 3 aspect ratio) Display method Transparent LCD panel (x 3, R G B) Drive method Active matrix method Number of pixels 786,432 (1024 x 768 pixels) x 3 Light source 230 W x 1 lamp Light output*1 3,800 lm Lamp replacement cycle*2 Normal: 10,000 h Eco: 20,000 h Quiet: 10,000 h Filter replacement cycle Normal: 5,000 h Eco: 6,000 h Quiet: 10,000 h Resolution 1024 x 768 pixels Contrast ratio*1 20,000: 1 (All white