Wider than Sony's EX71 frequency response range, and matches Audio-Technica's CK5 wider driver size. Ear canal buds fits snugly. Stays in place even during vigorous exercise, eg. jogging, treadmill. Blocks out external noises, creating an excellent inner ear acoustic environment. Silicone earbuds comes in 3 changeable sizes - S, M, L. Actual sizes in pix.   Frequency Response Hz 6-25k Sensitivity dB/mW 104 Output W 0.2 Impedance ohm 16 Driver Size mm 11.5 Weight g 4 Cord Length in m, Shape 0.5

HJE50 Contents .. Earphones, 0.5m cord, stereomini plug 1m extension cord, stereomini L plug 3 pairs Silicone earbuds (S, M, L) Pouch Supplied by Authorized Resellers in Singapore. This product's short warranty period is unfortunately standard here. We do NOT knowingly sell fakes. Singapore Warranty 1 month from received date. We can help you liaise with the local repair centre. You will pay for postage to/from our Singapore office.