• Speaker diameter40mm impedance: 32ohm15% 1000hz/mw
• Channel balance≤3db at500hz-1000hz
• Distention<2%(3mw.1khz)
• Speaker impedance32ω
• Magnetn40
• Sound pressure level109db±3db (at 1000hz 1mw)
• Frequency response20hz---20000hz
• Rated input30mw
• Maximum input50mw
• Cord length1200mm
• Plugø3.5mm gold plated
• Suitable forcd,mp3, iphone,pc,tv, ps3,xbox, mobile-phone, tablet pc