Unique capsule design, infant pacifiers grade silicone earplugsMake you enjoy the soft and clean sound, can fit most people45° Angle of half-ear wearing, comfortable and not easy to fall off, 7 mm moving coil unitInnovative screw balance damping system, allows you to enjoy simple and natural soundTough and durable Kevlar fiber, effectively protect earphone cable and extending service lifeAdopts spiral balance damping system to bring wonderful stereo soundsBuilt-in mic, supports hands-free callsCompatible for most of Android mobile phone, Volume control is not available for iOS system.Specifications:Brand: XiaomiColor: BlackModel: Xiaomi Mi Piston Air Capsule EarphonesConnectivity: WiredPlug Type: 3.5mmCable Length (m): 1.25mDriver unit: 7mmSound channel: Two-channel (stereo)Frequency response: 20-20000HzImpedance: 32ohmsSensitivity: 93dBPackage Includes:1x Xiaomi Capsule Design In-Ear Earphone