【Zinc Alloy and Resin Case】 The cover is made of high quality zinc alloy, while the cavity is made of imported resin and the vowel cavity is made of aluminum alloy. The combination of different materials and the wide range of color options shows a modern and eye-catching headphone.【 Driver Enhanced】 Adapted 30095 Balanced Armature and 10mm dynamic drivers that provide great bass sound. It’s full of low frequency, rich in detail. The sound signature is balanced, more coherent from top to bottom with good, deep, solid bass, clear midrange and nice high frequencies.【 Noise Cancellation and Ergonomic Wearing】 When not playing music, the earbuds can properly wear 26dB of noise isolation. You can hear the music details in a noisy environment. Independent sound channel for each driver, the sound will not be distorted, bring you a new kind of acoustic sense. Ergonomic design and ear hook offer you a comfortable fit.