The classic is hard to be surpassed. Professional tone tuning play the impressive sound. Strong bass make the emotion more deep. 32Ohm high impedance loud speaker, low current when use, saving power, prolong the battery service life, and relieve the heat caused by the big output current. Comfortable wearing, no pain, not fall, enjoy your way. Wire control microphone, easy operation, easy control. Compatible with both iPhone and Android system, all the devices with 3.5mm audio port could be available, easy and efficient.