quad driver headphones,erjigo kz zs5 high fidelity extra bass earbuds without microphone,with detachable cable (grey) kz <p><b>product details</b><br><br> connectivity : wired<br>driver: 10mm*2pcs,6.4mm*2pcs <br> sensitivity: 106db <br> dc resistance: 18 ohms <br> frequency range: 20hz-20000hz <br> maximum power :10mw <br> microphone: no<br> cable length: 3.9 foot <br> color: metallic blue&grey<br> <br> <b>dimension and weight</b><br><br> product weight: 0.04 pounds<br> package weight: 0.14 pounds <br> package size (l x w x h): 4.1 x 2.76 x 1.26 inches<br><br> <b>what’s in the box.</b><br><br> 1 x kz zs5 earphones<br>2 x earbud tips(2 pairs, s/l)<br> 1 x user manual<br> </p>