Stereo Ear Clips are ideal for portable CD DVD MP3 players and iPods. Designed for extended use. Lightweight design includes a soft-touch 4 rubber cord and a 3.5mm straight plug. Ear clips offer a 32 ohms impedance 30mm drivers anisotropic ferrite magnet 0.016mm film 13.6mm coil 100 dB +/- 3 dB sensitivity less than 3dB channel balance 40mW rated input 100mW maximum input and 20Hz to 22 000Hz frequency response. Lightweight ear clip design for extended use. Magnet: Neodymium. Film: 0.012mm. Coil: 10.3mm. Channel Balance: < 3 dB. Rated Input: 40 mW. Maximum Input: 100 mW. Connectivity Technology Wired. Sound Mode: Stereo. Impedance: 32 Ohm. Minimum Frequency Response: 20 Hz. Maximum Frequency Response: 22 kHz. Plating: Silver Silver Plated. Earpiece Technology: Dynamic. Earpiece Design: Over-the-ear. Driver Size: 1.18. Earpiece Sensitivity: 100 dB. Host Interface: Mini-phone.