Dunu DN-16 Metal Full Range Noise-Isolation Earphones, Earbuds: Modern Looking/Sounding Headphones with Patented Power Bass Technology Loud Bass output from 9 mm metal drivers Dynamic range is excellent: Sensitivity: 105  2dB Ambient Sound-Cancelling Technology (sound isolation) Awesome accessory bundle as with all Dunu products Durable build from quality components (RoHS compliant)