Samsung Bluetooth WEP420 Bang And Olufsen Headset Noise Shield Slide cover keeps buttons hidden with dual function of blocking out staticSoft spring earhook moves flexibly from left to right to be worn on either earLuxury cradle designed as charging tool and as a soft-feeling ZEN style interior itemFeatures slide call receiving, last call dialing, mute, hold and LED on/off modesUp to 4 hours talk time and 70 hours standby Compliant with Bluetooth v2.0 devices