Detailed Product Description Unique Bluetooth Car Kit, Headset, Speaker 3 in 1,U&I-04AMain Features:* ... 2. Combining the two sets together: the car kit base and Bluetooth headset.3. Can be used in ... conversation, you can separate the headset from the car kit base, and put it onto your ear, then ... (mm): L48 x W21 x H12Weight: About 9g Speaker Phone BaseTalk Time*: Up to 10 HoursStandby Time*: ...