Main Features:By hot pressing and delicate carving process of the duralium shell which makes sound more pleasant and fullUnique double sound cavity structure and excellent sound quality resolution qualityRich bass, suitable for all kinds of music style like pop, rock, country, etc.Super soft earplugs, make you feel comfortable no matter how long you wearWith microphone, support hands-free callsSuitable for cellphone, MP3, MP4, laptop, tablet, etc. Brand: Plextone Model: X50M Color: Gold Wearing type: In-Ear Function: Answering Phone,Microphone,Noise Cancelling,Song Switching,Voice control Headset type: Dynamic Connectivity : Wired Application: Computer,Mobile phone,Portable Media Player,Sport Plug Type: 3.5mm Cable Length (m): 1.2m Driver unit: 8mm Sound channel: Two-channel (stereo) Frequency response: 15-21KHz Impedance: 16ohms Sensitivity: 118dB Package weight: 0.057 kg Package size (L x W x H): 16.00 x 6.50 x 2.00 cm / 6.3 x 2.56 x 0.79 inches Package Contents: 1 x PLEXTONE X50M In-Ear Stereo Earphones, 2 x Paired Ear Tips in Different Size, 1 x Clip