Features: ? 15.4mm big dynamic driver earbud headphones, provide you an excellent music enjoyment. ? No ear-canal irritation - Excellent choice for people who are not comfortable with in-ear earphones ? This Classic Style hifi headphone built with standard 3.5mm audio jack, compatible for Android smartphones, music player, tablet,pc. ? Wired hifi earphone can be used in jogging, walking , travel, and so on. Specification: ? Model: KBEAR Stellar ? Style: Classic Style Earbud ? Sensitivity: 115±3dB ? Impedance: 30 O ? Frequency response range: 20-20000Hz ? Driver: 1 dynamic driver ? Driver Diameter: 15.4mm ? Driver material: Japanese PPS ? Plug diameter: 3.5mm ? Plug type: Straight curved ? Wired or wireless headset: wired headset ? Color: Black, Red, Blue, White, Clear Black ? Yes or No Microphone: Optional ? Cavity Material: ABS ? Suitable style type music: classical, rock, pop and so on Package included: ? 1* KBEAR Stellar earphone Please Note: ? KINBOOFI have the Formal authorization from KBEAR company , all products are original.