Specification: _x005f_x000D_ Specification: without microphone, with microphone (optional) _x005f_x000D_ Color: White, Black, Green (optional) _x005f_x000D_ Sound production principle: Hybrid Technology _x005f_x000D_ Wearing method: ear wrapping _x005f_x000D_ Impedance: 28 Ω _x005f_x000D_ Frequency range: 20-20000Hz _x005f_x000D_ Plug type: 3.5mm _x005f_x000D_ Cable length: 1.25m _x005f_x000D_ Sensitivity: 110dB _x005f_x000D_ With or without cable: Yes _x005f_x000D_ Gross weight: 85g _x005f_x000D_ Packaging size: 95 * 72 * 32mm/3.74 * 2.83 * 1.26in _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ Note: _x005f_x000D_ 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! _x005f_x000D_ Please allow 1-2cm measuring deviation due to manual measurement. _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ Included: _x005f_x000D_ 1 Pair x Earphones _x005f_x000D_ 3 Pairs x Earphone Sleeves _x005f_x000D_ 1 x 3.5mm Jack Cable _x005f_x000D_ 1 x Tuning pin _x005f_x000D_ 1 x Instructions 1. High-Quality Audio: The headphone features a fourth-generation dual magnetic circuit dynamic coil and customized high-frequency dynamic iron, paired with an all-new tuning switch design that allows you to easily adjust the sound and enjoy music that suits your preferences. 2. Three-Tune Switch Design: To cater to different listening styles and preferences, the headset uses electronic cross-over technology and has three tuning switches that can be adjusted to create four different sound profiles. 3. Semi-Open Back Design: The earphones feature a semi-open back design that balances air pressure on both sides of the diaphragm resulting in less air resistance, effectively relieving the pressure on the eardrum, preventing listener fatigue and making listening more comfortable. 4. Interchangeable Cable Design: The earbuds have an interchangeable cable design, allowing users to switch out cables to suit different needs and scenarios, providing a versatile and convenient listening experience.