The Bluetrek BIZZ is a headset that comes complete with a SD flash memory drive so when you are not on your mobile you can be saving your data. Pop the protective cap and the headset reveals a 2.0 USB connection that is compatible with microSD cards up to 8Gb. The Bluetrek BIZZ is a Bluetooth headset which offers up to 6 hours talk time with 10 days of standby time. However it is also a USB flash memory device and a microSD reader. Your headset is charged via USB, but you can also recharge your headset in the car using an optional car charger (not included).