AKG N18 In-Ear Headphones With mic ?IN ALUMINIUM ENCLOSURE) This is a headset customized by AKG for the Coolpad brand, and the price is more affordable. AKG N18 HiFi In-Ear Headphones AKG N18 HiFi In-Ear Headphones Product highlights: ? The appearance is simple but not boring, the beauty is both polite and dynamic ? The material is sturdy, durable, and TANGLE-FREE FABRIC CABLE ? In-ear design with a high-quality rubber knob helps to filter out outside noise ? The microphone is attached on the wire with 3 mechanical keys for convenient adjustment ? Sound quality: Mid-bass has a fairly thick force, challenging even high notes Product includes: N28 headphones x1, convenient carrying bag x1, silicone earplugs (large, medium, small) Technical specifications: Frequency response: 12Hz-24kHz Impedance: 32 ohms Maximum input power: 10mW Sensitivity: 115dBSPL/V@1kHz Weight: 18G Cable length: 1.2M Connecting plug: 3.5MM (1/8") stereo gold-plated connector Origin: Made in China (Designed in Austria)