September 2011 Business Life describes the i10's as"delightfully compact" and praises active isolation with the comment: "the noise deadening effect is dramatic."' Click here to view the full article, featuring Blackbox i10 i10 earphones attach to the iPod via Apple's 30 pin dock connector and deliver an enthralling sound experience with deep bass, clear vocals and natural highs. Disturbing background noise is almost entirely eliminated by world leading Active Noise Rejection technology from Phitek Systems. Fully featured, i10 earphones include integrated monitor and volume functions and come equipped with leather carry case and additional ear buds to ensure the perfect fit. i10 earphones provide the ultimate upgrade path for iPod users keen to improve sound quality and comfort. Features World leading Active Noise Rejection technology from Phitek Systems cancels 92% of background noise Electronically tuned dynamic drivers provide the ultimate in sound reproduction with deep bass, clear vocals and natural highs Ergonomically moulded ear pieces enhance listening comfort Integrated Monitor and Volume Control positioned in-line and within reach Powered by iPod - batteries not required Luxury case fits i10 and iPod Engineered by experts in advanced electro-acoustics providing best-in-class audio on-the-go Included Accessories Carry Case, Soft, Replaceable Silicone Tips, Volume Control Cable Length (m) 1.3 Cable Type Symmetrical Frequency Response (Hz) 20-20000 Sound Pressure Level (dB) 94 Total Harmonic Distortion (%) 1 Form In Ear Driver Type Dynamic Driver Diameter (mm) 9