ITEM NAME:T2 Dual 3.5mm Wired In-Ear Earphone Volume Control Headset Earbud with Mic #SFD Product Description Description: Specification: Model: T2 Type of headphone: In-ear earphone Wearing method: earplug type Plug diameter: 3.5mm Plug Type: Staright Plug Type Microphone: Dual Mic Sound Producing Principle: Moving Coil Frequency response range: 20-20000 (Hz) Impedance: 16ÃŽ © Sensitivity: -55Â ±1dB (dB) Distortion rate: 0.2 (%) Wire Length: 2 m Horn diameter: 10 (mm) Earplug/earmuff material: silicone Headphone Wire Material: TPE Packaging size: 60*40*10mm/2.36*1.57*0.39'' Weight: 21g Note: Please allow 1-3mm differs due to manual measurement. Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding. Included: 1 X Earphone 1 X Microphone Rod 2 Pair X Earmuffs.Type of headphone: In-ear earphone. Microphone: Dual Mic. Included: 1 X Earphone. Headphone Wire Material: TPE. 1 X Microphone Rod. Sound Producing Principle: Moving Coil. Frequency response range: 20-20000 (Hz).