Reference ENR (extra noise ratio): 0.1G/60DB 0.5G/55DB, 1G/52DB, 1.5G/48DB, 2G/38DB, 2.5G/30DB, 3G/27DB, 3.5G/20DB. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
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