ITEM NAME:1.2m EP-40 3.5mm Jack Earphone Bass Noise Isolating Earbud In-Ear Headset w/Mic Product Description Description: Feature: Indulge in sound quality, restore moving sound. Silicone in ear design, wear firmly. High definition microphone, clear call. Intelligent remote control, multi-function one key switching. Specification: Product brand: USAMS Product model: US-SJ421 Product color: Black, Red Material: PC + TPE Wire length: 1.2m/3.9ft Speaker sensitivity: 102dB Horn diameter: 10 mm Impedance: 32 ohms Frequency response: 20Hz-20KHz Microphone sensitivity: - 48 Â ± 3dB Interface type: 3.5mm pin Applicable equipment: 3.5mm interface equipment Function: audio + call 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 Line Control Earbuds.High definition microphone, clear call. Silicone in ear design, wear firmly. Microphone sensitivity: - 48 Â ± 3dB. Speaker sensitivity: 102dB. Wire length: 1.2m/3.9ft. 12 months Warranty. If item is defective after 3 months, you can still send it back to us.