Nokia BH-700-WH Bluetooth Earset . Wireless range: 9.1 m, Bluetooth version: 2.0+EDR. Battery technology: Lithium Polymer (LiPo), Battery capacity: 80 mAh, Talk time: 6 h. Weight: 9.92 g. Compatible products: AC-3U, AC-4U, DC-4. Package dimensions (WxDxH): 45.7 x 17.7 x 10.1 mm