Precise details:Package Included:Headset * 1, Storage * 1, Earplug sleeve * 3, Cable clamp * 1, Packing box * 1, Instruction manual * 1 Specification:Gross weight:144g size:l156 * W40 * h86mmShell:zinc alloy casting shellWire:Silver Plated oxygen free copper 4-coreProcess:zinc alloy plating + baking paintMicrophone:omnidirectional microphoneSensitivity:98dBFunction:non replaceable line, non pluggableFrequency response range:20-20000hzImpedance:16 ΩPlug specification:3.5mmDynamic:10 mm biological composite diaphragm single moving coil