Bluetooth stereo headset "Berlin", black ENJOY WIRELESS MOBILITY Listen to your music and make handsfree phone calls Works with any Bluetooth enabled laptop or mobile phone Long battery life Advanced DSP noise reduction technology Up to 250 hours of standby time and 10 hours of listening time Automatically mutes your music in case of incoming calls Multifunction button, volume control and low battery indication Voice prompt status updates (power on/off, pairing, incoming call) Comfortable ear cushions and adjustable headband