Red Ergonomic Earbuds in-Ear Headphones with Hands-Free Microphone and Deep Bass by GOgroove (AudiOHM HF Series) for Smartphones, Tablets, MP3 Players and More GOgroove AudiOHM HF Earbuds deliver incredible sound with stunning clarity and full-range audio ; Engineered with SonusMAX sound to deliver deep bass and clear highs Ear gels provide ambient noise-isolation for clear, uninterrupted audio For a customized fit, the earbuds come with 3 different-sized ear gels, plus a velvet travel bag and an integrated hands-free microphone for calling and voice dial Backed by GOgroove's 3-Year Manufacturer's Warranty TECH SPECS - Driver Unit: 10mm: 6u / Sensitivity: 103db / Impedance: 32 OHMs / Frequency Range: 20HZ - 20kHZ / Rated Power: 3mW / Max Power: 10mW / Cable Length: 48" / Plug: 3.5mm