Accessories: Adaptor plug 3.5 - 6.3 mm adapter Cable management Cable clip Connectivity Cable Connection detachable Oxygen free cable (3m) Sound Distortion <0.1% THD Diaphragm LMC Speaker diameter 50 mm Sensitivity 100 dB @ 1mW Maximum power input 500 mW Impedance 30 Ohm Frequency...

Power-infused performance Loaded with all the power you need, the Lumia 640 LTE works as fast and efficiently as you do. It's a workhorse that lets you concentrate more on what you're doing at any moment, with its quad-core Qualcomm Snapdragon 400 processor and Microsoft Office built in. And...

Quoted from Superlux manufacturer site: HD669 Professional Studio Standard Monitoring Headphones The HD669 are closed-back, circumaural headphones designed for professional monitoring applications. Although suitable for a very wide range of applications, the exceptional attenuation of external...