STM Dux Plus Cover for 10.9" iPad in Black Motherboard chipset family___AMD 5 mm connector Yes Connectivity 5 mm connector Yes Connectivity technology Wired Headphones Total Harmonic Distortion (THD) 1% Number of drivers 2 Driver unit 5 cm Magnet type Neodymium Headphone sensitivity 100 dB Impedance 32 Ω Headphone frequency 20 20000 Hz Ear coupling Supraaural Microphone Microphone direction type Omnidirectional Detachable microphone Yes Microphone frequency 100 17000 Hz Microphone type Boom Weight & dimensions Weight 256 g Height 200 mm Depth 90 mm Width 180 mm Packaging data Package type Box Package weight 410 g Package height 232 mm Package depth 93 mm Package width 179 mm Packaging content Quantity 1 Ear pad material Faux leather Cables included Audio (3 ENERGY STAR General Product Family ThinkVision Logistics data Harmonized System (HS) code 85285210 Technical details Compliance certificates RoHS Other features Energy efficiency class (old) A+ we make it a point to go above and beyond—even in the way we test our products best in class protection