Specification: Brand: KZ Model: ZEX PRO Color: Silver, Black (optional) Line control function: without mic or with mic (optional) Sound production principle: Electrostatic Hybird Wearing method: In ear style Plug type: L-bend type Frequency response range: 20-40000 (Hz) Impedance: 25 () Sensitivity: 104 (dB) Wire length: 1.2 (m) Plug diameter: 3.5mm Chamber material: metal+plastic Product size: about 102 * 72 * 32mm/4.01 * 2.83 * 1.25inch Packaging weight: 86g Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement. Included: 1 Pair x Headphones 6 Pairs x Headphone Sleeves 1 x 3.5mm Jack Cable 1 x InstructionsAgradecemos a sua confiança em nós. Se tiver alguma dúvida, entre em contato conosco.