Specifications: 100% band new Model: JM26 Type: In-Ear Only Sensitivity: 110(dB) Connector(s): 3.5 mm Jack Distortion Rate: 0.3 % Impedance: 16 ohms +/- 15% Frequency: 20-20000 Hz The length of Wireway: about 1.2 M Other Function: With Mic and Play Control Features One-touch Wire & Fully Compatible - Built-in high-definition microphone. Call listen to music button to get, easy to use. Resistant To Difficult To Winding Noodles - TPE elastic wire, not winding does not knot, reduce the headset caused by winding troubles. High-strength Pure Copper Voice Coil - Enhance the transient response of the headset to extend the life of the voice unit. Wear Comfortable & Natural - Comfortable soft silicone, effectively isolated noise, strong bass protection effect. Package Include: 1x JM26Headphones