Sentry EX489 Xtraem Metalix In-Earbuds With Case, Silver Use with iPods, MP3 players, DVD and CD players, TV, gaming, tablets, computers, laptops and more Metal designed in-ear ear-buds includes extra ear pads for easy replacement and carrying case Frequency: 20Hz-20kHz; Impedance: 16 Ohms 10mm driver for all-around balanced sound 4 foot long cord with 3.5mm color matched audio jack